Everything that is assembled from individual elements can be disassembled. Therefore, the dismantling of road slabs is not such a rarity, although their service life can reach several decades. This type of work is one of the stages in the construction of temporary access roads at construction sites. And the second case when disassembly of the road surface is needed is its repair.

Depending on the purpose for which the work is performed, there are features of the dismantling of road slabs and the choice of equipment used. The first case is a violation of the integrity of individual paving slabs. In most cases, the damage is minor and the plate can be used in more gentle operating conditions. But sometimes a complete destruction of the structure is required, since it is unsafe to use it.

When arranging temporary entrances, the use of plates is multiple. Therefore, they are usually not welded at the seams and, if necessary, a truck crane is sufficient to lift them.

Features of the dismantling of road slabs on permanent roads

The main task when dismantling the pavement on the roads is the removal of only one element and the preservation of the integrity of the rest. Therefore, the use of shock-dynamic method is not desirable. The vibration from the jackhammer causes imperceptible, but manifested further damage to the entire surrounding canvas. Therefore, individual road concrete slabs are removed today using new advanced equipment.

The first stage, from which the dismantling begins, is cutting the seams. They are filled with sand and gravel and filled with mastic, which needs to be removed. Equipment such as joint cutters and hydraulic shears quickly cope with the task, coping even with durable granite stone and welded reinforcement.

If it is necessary to completely remove the pavement, the impact-dynamic method was previously used. But at the same time there is a strong vibration, tons of dust and a high level of noise. Therefore, today the dismantling of road slabs is carried out in a more gentle way using the technology of impactless destruction. It is based on the action of the hydraulic system. Pressure is injected into the holes drilled in the slab, gradually destroying the structure. At the same time, the pressure is so high that not only concrete crumbles, but even reinforcing mesh. After that, the debris is easily removed and the freed area is ready for laying a new slab.

TYPICAL TECHNOLOGICAL CHART (TTK)

DEVICE OF TEMPORARY PASSAGE ON A CONSTRUCTION SITE WITH A COVERING OF PRECATED REINFORCED CONCRETE PLATES

I. SCOPE

I. SCOPE

1.1. A typical technological map (hereinafter referred to as TTK) is a comprehensive organizational and technological document developed on the basis of methods scientific organization labor intended for use in the development of Work Production Projects (PPR), Construction Organization Projects (POS) and other organizational and technological documentation in construction.

TTC can be used for the proper organization of labor at a construction site, determining the composition of production operations, the most modern means of mechanization and methods for performing work according to a specific technology.

The TTK is an integral part of the Work Execution Projects (hereinafter referred to as the PPR) and is used as part of the PPR in accordance with MDS 12-81.2007.

1.2. This TTK provides guidance on the organization and technology of work on the arrangement of temporary passage at a construction site with a continuous type of pavement made of precast concrete slabs.

The composition of production operations, requirements for quality control and acceptance of work, planned labor intensity of work, labor, production and material resources, measures for industrial safety and labor protection were determined.

1.3. The regulatory framework for the development of a technological map are:

Standard drawings;

Building codes and regulations (SNiP, SN, SP);

Factory instructions and specifications (TU);

Norms and prices for construction installation work(GESN-2001 ENiR);

Production norms for the consumption of materials (NPRM);

Local progressive norms and rates, labor costs norms, material and technical resources consumption norms.

1.4. The purpose of the creation of the TTC is to describe solutions for the organization and technology of work on the arrangement of temporary passage at a construction site with a continuous type of pavement from precast concrete slabs, in order to ensure their high quality, as well as:

Reducing the cost of work;

Reducing the duration of construction;

Ensuring the safety of work performed;

Organization of rhythmic work;

Rational use of labor resources and machines;

Unification of technological solutions.

1.5. On the basis of the TTK, as part of the PPR (as mandatory components of the Work Execution Project), Working Flow Charts (RTK) are developed for the performance of certain types of work (SNiP 3.01.01-85 * "Organization of construction production") for the arrangement of temporary passage at a construction site with a continuous type of coating from precast concrete slabs.

The design features of their implementation are decided in each case by the Working Design. The composition and level of detail of materials developed in the RTC are established by the relevant contracting construction organization, based on the specifics and scope of work performed.

RTK are considered and approved as part of the PPR by the head of the General Contractor Construction Organization.

1.6. TTK can be tied to a specific object and construction conditions. This process consists in clarifying the scope of work, means of mechanization, the need for labor and material and technical resources.

The procedure for linking the TTK to local conditions:

Consideration of map materials and selection of the desired option;

Checking the compliance of the initial data (volumes of work, time standards, brands and types of mechanisms used building materials, the composition of the link of workers) to the accepted option;

Adjustment of the scope of work in accordance with the chosen option for the production of work and a specific design solution;

Recalculation of costing, technical and economic indicators, the need for machines, mechanisms, tools and material and technical resources in relation to the chosen option;

Registration of the graphic part with a specific binding of mechanisms, equipment and fixtures in accordance with their actual dimensions.

1.7. A typical flow chart has been developed for new construction and is intended for engineering and technical workers (work foremen, foremen) and road construction workers performing work in the III temperature zone in order to familiarize (train) them with the rules for performing work on the installation of a temporary passages at a construction site with a continuous type of pavement made of prefabricated reinforced concrete slabs, using the most progressive and rational solutions for the organization, technology and mechanization of road construction works.

1.8. Parameters of temporary passage with precast concrete slab pavement:

Width of the carriageway for single-lane traffic - =3.5 m ;

Sub-base thickness - =0.15 m;

Track thickness - =0.17 m.

Fig.1. Cross section of a temporary road paved with reinforced concrete slabs

II. GENERAL PROVISIONS

2.1. The technological map has been developed for a set of works on the arrangement of a temporary passage at a construction site with a continuous type of pavement made of precast concrete slabs.

2.2. Work on the arrangement of temporary passage at a construction site with a continuous type of pavement of precast concrete slabs is carried out in one shift, the duration of net working time during a 10-hour shift is:

2.3. The scope of work performed sequentially when arranging a temporary passage at a construction site with a continuous type of pavement from precast concrete slabs includes the following technological operations:

Geodetic breakdown of the passage structure;

Cutting of the vegetative soil layer, h=0.10 m;

Preparation of a natural base;

The device of the sandy, underlying layer, h = 0.15 m;

Installation of prefabricated reinforced concrete slabs;

Welding slabs and sealing seams with sand-cement mixture.

2.4. The technological map provides for the performance of work by an integrated mechanized unit consisting of: dump trucks KAMAZ-6520 (Q=20 t); soil vibratory roller DU-85 (=13 t, =15-70 cm, =2000 mm); watering machine PM-3U (=6000 l); wheel front loader Volvo L45В (=1.5 m); bulldozer DZ-42 based on the DT-75 tractor (=2.56 m, =0.8 m, =1.5 m, =95 hp); welding generator (Honda) EVROPOWER EP-200X2 (single station, gasoline, P=200 A, H=230 V, m=90 kg); truck crane KS-3577-3K (=14.0 t, =15.5 t, =14.0 m).

Fig.2. Truck crane KS-3577-3 and load capacity chart

Fig.3. Dump truck KAMAZ-6520	Fig.4. Watering machine PM-3U

Fig.5. Volvo L45B wheel loader

A - total length 6000 mm; L - max. lifting height 4690 mm; T - excavation depth 200 mm; H - bucket unloading height, 45° 2810 mm; M - bucket reach max. height 830 mm; N - bucket reach 1650 mm; B - 5030 mm; C - 2450 mm; D - 410 mm; F - 2930 mm; J - 3395 mm; K - 3650 mm.

Fig.6. Bulldozer DZ-42

Fig.7. Generator EVROPOWER EP-200X2	Fig.8. Soil roller DU-85

2.5. The following structures and materials are used for the construction of temporary passage at the construction site: medium-grained sand from 3 m / day, meeting the requirements of GOST 8736-93 *; reinforced concrete slabs 2P30.18-10 (size 30001750170 mm, m=2.2 t, V=0.88 m, without mounting brackets) that meet the requirements of GOST 21924.0-84; electrodes E-42, meeting the requirements of GOST 9466-75; dry, ready sand-cement mix 1:12, meeting the requirements of GOST 31357-2007.

Fig.9. General view of the road slab 2P30.18-10

H=170 mm; H=1750 mm; L=3000 mm.

2.6. Work on the arrangement of temporary passage at a construction site with a continuous type of pavement of precast concrete slabs should be carried out in accordance with the requirements of the following regulatory documents:

III. ORGANIZATION AND TECHNOLOGY OF WORK PERFORMANCE

Solve the main issues related to the logistics of construction, incl. conclusion of contracts for the supply of material and technical resources, placement of orders for the manufacture of elements of prefabricated structures, parts and products necessary for the construction of an object (structure);

Obtain from the construction control of the Customer the main sets of working drawings with the inscription "In production work" and provide them with a construction site;

Organize a thorough study of design materials containing the initial data for construction by craftsmen and foremen;

Develop WEP for "On-site preparatory work", containing decisions on the organization of construction production, technology of road construction works, to coordinate them with the General Contractor and the construction control of the Customer;

To appoint by order of the construction organization persons responsible for the safe production of work, control and quality of their implementation;

To equip the brigade (link) with workers of relevant professions and machinists of road-building machines with the necessary qualifications;

Familiarize the foremen and link officers with the Project for the production of work, the Technological map and the technology for the production of work on the arrangement of temporary passage, as well as issue to the teams and links Work orders, Calculations and Limit-fence cards for materials for the entire volume of assigned work;

To instruct members of teams (links) on industrial safety and labor protection during the performance of work;

Provide workers with personal protective equipment;

Establish temporary inventory household premises for storing building materials, tools, inventory, heating workers, eating, drying and storing work clothes, bathrooms, etc.;

Develop schemes and arrange temporary access roads for traffic to the work site;

Arrange temporary storage areas for receiving structures, building parts and materials;

Prepare machines, mechanisms and equipment for the production of work, deliver them to the facility, mount and test them at idle;

Deliver to the work area the necessary equipment, devices for safe work performance, electrified, mechanized and hand tools;

Provide the construction site with fire-fighting equipment and signaling equipment;

Provide communication for operational dispatch control of the production of works.

3.3. General requirements to work

3.3.1. The construction of temporary roads is carried out in order to provide access to construction sites, or in cases where the main road is closed to civil traffic for repair and construction work. A temporary road is also needed for access to construction sites in swampy or hard-to-reach places, to mining sites, to logging sites. In the construction of temporary roads, road reinforced concrete slabs are widely used, which make it possible to reduce the time for the construction of entrances and ensure their durability and reliability.

3.3.2. Temporary roads may be covered with crushed stone, gravel or reinforced concrete road slabs on a sandy base.

3.3.3. Roads at construction sites can be dead-end and roundabouts. At the end of the dead ends there must be turnaround areas with a size of at least 12x12 m (see Fig. 10).

Fig.10. Plan of intra-construction roads during the construction of ground structures

1 - ring road; 2 - dead end road; 3 - passing; 4 - turn; 5 - wide turn of the ring road

Fig.11. Scheme of dead-end and turnaround areas

Roads are laid in such a way that the distance from the road edge to the buildings (structures) under construction is at least 0.8 m, and to the edge of trenches or pits located along the roads, at least 1.5 m. At the same time, the roads themselves must be outside the prism of collapse soil.

3.3.4. The width of temporary motor roads is taken:

With two-lane traffic - 6 m (in justified cases - up to 7 m);

For single-lane traffic - 3.5 m with a widening of up to 6.5 m for unloading platforms for vehicles (for heavy vehicles - 7.0 m).

3.3.5. The length of the unloading area is assigned depending on the number of vehicles simultaneously standing under unloading, their dimensions and is taken within 15-45 m.

3.3.6. The rounding radius of temporary roads depends on the size of the goods and vehicles used for their delivery, and is taken within 12-18 m.

Fig.12. Schemes of turns of temporary roads from slabs

3.3.7. On the construction site with an area of ​​5 hectares or more, at least two entrances from opposite sides are provided.

3.3.8. The width of the gates at the entrances to the construction site must be at least 4 m.

3.3.9. Each working exit from the construction site is equipped with a point for washing (cleaning) the wheels of vehicles.

3.3.10. At the entrances to the construction site, a fire protection information stand is installed with applied buildings and structures under construction and auxiliary buildings, a traffic pattern, the location of water sources, fire extinguishing and communication equipment, and a fire brigade is appointed.

3.3.11. At the intersection of temporary roads with dangerous zones, it is necessary to install road signs and safety signs. In necessary cases, signalmen are specially appointed to regulate the movement of transport and the operation of the lifting machine.

3.3.12. Roads should be provided with speed limit signs. The speed of vehicles on the construction site near the work sites should not exceed 10 km/h on straight sections and 5 km/h on bends.

3.3.13. The main difference between "temporary" coatings and "permanent" coatings is the absence of mounting brackets, which are an indispensable element for the latter. The fact that concrete road slabs can be used several times (dismantled and installed in a new place) makes their use cost-effective. After use, the slab does not lose its operational characteristics, and the construction of temporary roads can immediately begin in a new location.

3.3.14. The installation of a prefabricated cement concrete pavement can be carried out all year round. AT winter time the laying of slabs in the road surface is carried out on the finished subgrade and base (arranged in the summer) in accordance with the requirements for the performance of work in the winter. In snowfall and blizzard, work on the arrangement of pavement is not allowed.

3.3.15. As the construction is completed, the reinforced concrete slabs of the temporary passageway are dismantled and transported to the warehouse of the construction organization for further operation.

3.4. Preparatory work

3.4.1. Prior to the start of the main work on the arrangement of a temporary passage at the construction site, preparatory work must be completed, which include:

Breakdown and fixing on the ground of the route;

Cutting, loading and removal of the plant layer of soil;

Natural foundation preparation.

3.4.2. Works on the arrangement of the passage should begin with determining the location of the building (structure) under construction and marking the boundaries of the passage in the presence of a representative of the General Contractor.

3.4.3. The geodetic breakdown of the passage at the construction site consists in designating its dimensions on the ground. The breakdown is carried out in two planes: horizontal and vertical. With a horizontal breakdown, the position of the axis is determined and fixed on the ground, and with a vertical breakdown, the estimated height of the passage. The axis of the crossing is first visually hung with stakes, giving the direction of the route, then the breakdown is corrected by measuring the distance from the building (structure) under construction to the axis and the marked points are fixed with stakes every 20 m. 0-1.5 m, installed every 10 m. The contours of the storage shafts are marked with stakes.

In order to prevent breakage or backfilling of the established road marking signs on the ground, they should be marked with pegs placed outside the earthworks. After the completion of the construction of the passage, the established breakdown is removed.

The work performed on the geodetic breakdown of the temporary passage at the construction site must be presented to the representative of the Customer's building control for technical inspection. In the absence of defects, and also after the elimination of deficiencies, it is necessary to document these works by signing the Act of breakdown of temporary passage on the ground in accordance with the form given in Appendix 2, RD-11-02-2006.

3.4.4. Before the start of each type of work, the boundaries of zones of potentially hazardous production factors should be established at a distance of 5 m, which include the zones of movement of machines (loader, roller, jib crane), their parts, working bodies, as well as places over which goods are moved ( reinforced concrete slabs) with a jib crane. At the boundaries of the zones, safety protective and signal fences, warning notices and safety signs should be clearly visible at any time of the day.

Fig.13. Warning signs

Fig.14. The design of the signal fence

3.4.4. The following technological operations are included in the sequentially performed excavation work for cutting the vegetative layer of the soil:

Cutting of vegetable soil by a bulldozer with moving into shafts;

Loading of plant soil with a front loader into dump trucks;

Transportation of vegetable soil to the dump by dump trucks.

The vegetation layer should be cut, as a rule, in a thawed state. In case of difficult terrain of machines, it is allowed to remove the soil in the spring when the soil thaws to the appropriate depth.

Vegetation (fertile) layer h = 0.10 m thick, 3.50 m wide is removed from the right of way allocated for the construction of a temporary passage and placed in shafts, which are located on the passage.

Working according to the "shuttle scheme", the vegetable soil is removed and moved bulldozer DZ-42 across the entire right-of-way.

When cutting vegetable soil according to the "shuttle scheme", filling the dump with soil, its movement is carried out when the bulldozer moves forward, and idling- when the bulldozer is reversing along the same straight line.

In this case, each cycle of cutting and moving the soil is carried out with the overlap of the previous track by 25-30 cm with the movement of the cut soil into a cone for its further loading into dump trucks and removal to designated places.

Each cycle of the bulldozer for cutting the vegetable soil is carried out in the following technological sequence:

Lowering the blade and setting it to the required position;

Cutting and filling the dump with soil;

Moving the soil of the vegetative layer to the place of laying;

Unloading (laying) the soil of the vegetative layer into the dump;

Moving the bulldozer into the face to the next grip.

When removing and storing the fertile soil layer, measures must be taken to prevent the deterioration of its quality (mixing with underlying mineral layers, underlying non-vegetative soil, pollution with waste, construction waste, erosion, blowing, freezing, etc.).

The soil of the vegetative layer is loaded from the dump wheel loader Volvo L45В in dump trucks KAMAZ-6520 . Soil is loaded by a loader from the side of the dump truck. The soil is removed to the places determined by the POS, where it is unloaded into a dump for delivery to the land user.

The performed work on cutting the vegetation layer of the soil must be presented to the representative of the Customer's building control for technical inspection. In the absence of defects, and also after the elimination of deficiencies, it is necessary to document these works by signing the Hidden Works Examination Certificate, in accordance with Appendix 3, RD-11-02-2006, and obtain permission to carry out subsequent work on the preparation of a natural foundation.

3.4.5. The preparation of the soil base for the embankment of the subgrade consists in its alignment, planning and compaction.

Alignment of the surface of the base under the embankment is carried out bulldozer DZ-42 by cutting bumps, backfilling holes, ruts and irregularities (more than ±0.1 m), longitudinal passes in two passes along the track, overlapping the previous pass by 0.5 m.

Alignment of the surface of the base under the embankment is carried out in strips equal to the width of the bulldozer blade, with a working stroke in one direction (see Fig. 15).

Fig.15. Scheme of laying out a natural base by a bulldozer

The surface of the soil base should be planned for a gable transverse profile with a slope of 40‰ to the crests of the passage and ensure the rapid removal of precipitation.

In view of the fact that the soil at the surface zone (5-10 cm) of the natural soil base obtained from cutting the vegetation layer, as a rule, has a slightly lower value than required, due to its horizontal shift by the roller during compaction ("bulldozer effect "), it is necessary, when preparing for the construction of the subgrade, to compact this zone with the help of a road, self-propelled, soil vibratory roller DU-85 for 3 passes along one track, by shuttle passes at a working speed of 6.0 km/h, with the vibrator turned off, starting from the edge of the base, with each pass moving towards the axis by 2/3 of the compacted strip, with each previous pass overlapping by 0.3 m, up to compaction factor 0,98 .

Completed work on the preparation of the natural base must be presented to the representative of the Customer's building control for technical inspection. In the absence of defects, and also after the elimination of deficiencies, it is necessary to document these works by signing the Concealed Works Examination Certificate, in accordance with the form of Appendix N 3, RD-11-02-2006, and obtain permission to perform subsequent work on the installation of a sandy underlying layer.

3.4.6. To ensure the scope of work on the arrangement of the sandy underlying layer, work on the arrangement of the trough must be carried out ahead of at least one shift.

3.4.7. The completion of the preparatory work is recorded in the General Journal of Works (The recommended form is given in RD 11-05-2007).

3.5. The device of the sandy underlying layer

3.5.1. Underlayment created for:

Elimination of irregularities of the natural base;

Ensuring the movement of coating slabs when the ambient temperature changes;

Evenly distribute pressure from cars;

Reduction of stress in the plates;

Increasing the resistance of the surface of the natural base during the construction and operation of the road.

The underlying layer performs the functions of draining, frost protection, leveling and anti-silting.

3.5.2. The construction of the sub-base includes the following work steps:

Transportation of sand by dump trucks;

Leveling the sand with a bulldozer;

Leveling the underlying layer with a bulldozer;

Compaction of the layer with soil rollers;

Watering with water when the moisture content of the sand is less than optimal.

3.5.3. Before starting work on the installation of the underlying layer in winter, the natural base must be cleared of snow and ice in the area of ​​​​the replaceable grip. In snowfall and blizzard, work on the device of the layer should be stopped.

3.5.4. Sand for the underlying layer is mined in a quarry excavator Volvo EC-290B and delivered to the place of work dump trucks KAMAZ-6520.

Sand is delivered to the prepared base of the trough based on the required layer thickness. The value of the required thickness, taking into account the sand safety factor for compaction equal to 1.10, is found by the formula.

, m,

Design layer thickness, m

Required compaction factor, Table 22, SNiP 2.06.02-85

Coefficient of initial compaction: bulldozer 0.800.85

Sand layer settlement value, 3%

The imported sand is unloaded from dump trucks onto the surface of the base of the trough in heaps. The distance between the centers of unloaded heaps of soil is determined by the formula:

Where is the carrying capacity of a dump truck, tons.

Heap leveling strip width, m

Thickness of the technological layer of backfill, m

Sand compaction safety factor=1.10.

Volumetric weight of sand, t/m.

Maintaining the required distance will not only guarantee the required thickness of the underlying layer and ensure the quality of its compaction, but will also minimize the work of the bulldozer and motor grader to level the heaps and save time and fuel. Sand is received at the unloading site by a road worker, who gives a signal for the approach and departure of the car, stops at the designated places for unloading materials.

3.5.5. Sand leveling in the layer is performed bulldozer DZ-42 in four passes, with the movement of soil from the heap to a distance of up to 3.0 m in layers = 0.11 m thick, according to the shuttle scheme from the edges to the middle for the entire width of the trough, with overlapping of the previous track by 0.4-0.6 m at operating speed in second gear in the "away from you" way (see Fig. 16)

Fig.16. Scheme of work on the construction of the sandy underlying layer:

1 - distributed sand; 2 - leveling sand with a bulldozer; 3, 4 - delivered sand

3.5.6. For profiling the upper part of the underlying layer, it is carefully planned according to design marks. bulldozer DZ-42 according to the shuttle scheme for two passes along the trail, in 1st gear. Planning should begin with the lowest (in the longitudinal plan) sections. First, they cut off the bumps, the existing "comb", and fill in the holes, and then proceed to the general layout along the entire length of the grip. The overlap of traces during layer planning should be 0.5 m. In the process of profiling, to ensure the evenness of the layer, it is necessary to remove or add sand. The surface of the backfilled layer should be planned for a gable transverse profile with a slope of 40‰ to the crests of the passage and ensure rapid removal of precipitation.

3.5.7. To achieve the required density of the underlying layer =0,98 sand during compaction should have an optimal moisture content of 8-12% or differ from the optimal one by no more than 0.90-1.05.

In dry and hot weather, to bring the sand to optimal humidity and ensuring its better compaction 20-30 minutes before compaction, the surface of the layer is poured with water using watering machine PM-3U . The required amount of water to moisten 1.0 m of the laid layer is determined by the formula

Road cutting performed by a seam cutter for the subsequent dismantling of a fragment of the road. We carried out these road works in winter conditions at sub-zero temperatures, in the amount of 260 running meters. Roadbed where asphalt and road slabs are cutneeded to be treated with a reagent. Otherwise, the water that enters the saw blade freezes and creates ice, and this is unacceptable for the joint cutter. In summer conditions, this type of work is carried out faster.

New recipes tested by time.

Dismantling of road slabs

road slabs and asphalt with the subsequent restoration of the road surface.
Dismantling carries out backhoe loader JCB with hydraulic hammer. Dismantled fragments of the roadway are loaded into a dump truck and immediately removed.
The total volume of dismantled concrete is 80 cubic meters.

trench device

trenching in the roadbed. We cut out the asphalt and concrete slabs, knocked down the concrete and removed the earth crust in the amount of 110 cubic meters. For the export of concrete, 11 containers with a volume of 20 cubic meters were needed.

Laying of road and airfield slabs PAG.

Our company offers a full range of turnkey laying of road and airfield slabs at balanced prices - from the installation of a sand and gravel pad and the preparation of the top layer of soil using a bulldozer - to the actual laying, using a truck crane of the required load capacity. All special equipment necessary for organizing the laying process is present on the balance sheet of the company. It is possible to supply a wide range of road slabs of the dimensions and weight you need.
At the preliminary consultation, having familiarized ourselves with the scope of work, the employees of our company will help you choose the right way to lay the road slab and calculate the exact price. The final price for 1 sq. m of laid or dismantled road slabs is cheaper than the average market price.
The advantages of our company include:
Highly qualified employees.
The possibility of laying the road, both from new and used slabs.
Availability of own fleet of necessary road equipment.
Direct contact with manufacturers of building materials.
Affordable prices for laying road slabs.
Turning to us, you can be completely sure that the laying of slabs will be done quickly and efficiently.

Stages of laying road and airfield slabs by the specialists of our company:

Stage 1 - preparatory work: first we cut off the top layer of soil, and eliminate all the unevenness of the soil, we get a kind of "earthen trough". We cover the bottom of the "trough" with a special material - geotextiles for water exchange, soil leaching and protection from plants;

Stage 2 - base device: we make a “pillow” of layers of crushed stone with sand (or brick battle) and sand, which will make the future road resistant to soil influences with a thickness of at least 10-20 cm, while carefully pouring the sand with water and then tamping it.

Stage 3 - slab coating device: this is directly the laying of the plates itself, namely, the sequential placement of the plates with the help of special equipment in a joint or with a gap, then we weld trailer metal loops that are located on the end sides of the plate. (if these loops are on the plates). This is necessary to prevent the spreading of road slabs upon completion of laying and during the subsequent operation of the road. Next, we fill the resulting seam between the slabs with sand or concrete mortar. As a matter of fact, you can do without it, but then the road will not turn out so even and smooth, and docking nodes will also be visible, which, definitely, will not add beauty to the appearance.

On this, the road, made of road (airfield) slabs, is completed.
These roads differ from concrete ones, firstly, in that you can drive on them immediately after laying. Secondly, road slabs can be removed and reused for laying. And at the same time, their performance will not decrease at all.

The cost of laying road slabs:

Name of works	unit of measurement	price, rub.
Departure of a specialist, consultation and measurement	Is free
Stage 1: Preparatory work
Development of an earthen "road trough" with layout and compaction	cubic meters	from 600
Excavation of soil manually with loading and removal of soil by dump trucks.	cubic meters	900-1100
Soil excavation by mechanisms with loading and removal of soil	cubic meters	700-800
Dismantling of asphalt concrete pavement	sq.m.	from 170
Dismantling of road slabs with ispol. crane with loading and garbage disposal	sq.m.	from 360
Laying geotextile with material cost	sq.m.	from 100
Stage 2: Foundation device
The device of the underlying layer of the base of sand 10 cm thick	sq.m.	from 120
Foundation device made of crushed limestone 10 cm thick	sq.m.	from 220
Granite crushed stone foundation	sq.m.	310-330
The device of the base from concrete crushed stone	cubic meters	from 1300
Brick base device	cubic meters	from 1500
Stage 3: pavement of road slabs
Paving from new road slabs	sq.m	1300
Used paving slabs	sq.m	1100
Coating of new airfield slabs	sq.m	1600
Coating device from used airfield slabs	sq.m	1300