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The applied range of foam concrete.

wallpapers Tech 2020-04-23

The applied range of foam concrete.

(1) Used as a retaining wall. Used primarily as a rock wall in the port. Used as a lightweight backfill material behind the shore wall can reduce the vertical intercept load and also reduce the lateral load on the shore wall. Because cellular concrete is a rigid body with good bonding performance, it does not exert lateral pressure on the shore wall along the periphery, the settlement is reduced, and the maintenance cost is reduced, which saves a lot of expenses. The bubble concrete can also be used to improve the stability of the embankment slope and use it to replace part of the soil of the slope, because it reduces the mass, thereby reducing the force that affects the stability of the slope.

(2) Construct sports fields and athletics tracks. Use permeable foam concrete with strong drainage capacity as a lightweight foundation, covered with gravel or artificial turf, as a sports ground. The density of the bubbling concrete is 800 ~ 900kg / m3. Such sports fields can be used for hockey, football and tennis. Or a 0.05m-thick porous asphalt layer and plastic layer are covered on the bubbling concrete, which can be used as track and field runway.

(3) As a sandwich member. In the prefabricated reinforced concrete components, bubble concrete can be used as the inner core, so that it has excellent performance of lightweight, high strength and heat insulation. Foam concrete with a density of 400 ~ 600kg / m3 is usually used.

(4) Pipeline backfill. Underground abandoned oil tanks, pipelines (containing crude oil, chemicals), sewage pipes and other cavities are likely to cause fire or collapse. The use of bubble concrete backfilling can solve these problems and cost less. The density of bubble concrete depends on the diameter of the pipe and the groundwater level, which is generally 600 ~ 1100kg / m3.

(5)Lean concrete fill. Due to the application of flexible hoses, bubble concrete has great workability and adaptability, so it is often used for lean concrete filling. If the requirements for thermal insulation are not very high, a lean concrete filling with a density of about 1200kg / m3 is used, with an average thickness of 0.05m; if the requirements for thermal insulation are high, a lean concrete filling with a density of 500kg / m3 is used, The average thickness is 0.1 ~ 0.2m.

(6) Roof slope.Bubble concrete is used for roof slopes and has the advantages of lightweight, fast construction speed and low price. The slope is generally 10mm / m, the thickness is 0.03 ~ 0.2m, and the bubbling concrete with a density of 800 ~ 1200kg / m3 is used.

(7) Support of the bottom of the storage tank. The foam concrete is cast on the bottom of the steel storage tank (containing crude oil and chemicals), and a convex foundation can be formed when necessary, so as to ensure that the support of the entire tank bottom is in the best stress state during welding. Continuous support allows the storage tank to use a thin plate bottom. At the same time, the convex foundation is also easy to clean. The use density of bubble concrete is 800-1000kg / m3.

(8) Used for landscaping.The foam concrete is made into a bulk density of 600-1000kg / m3. which can be used in a garden rockery, garbage bins, tables and stools, etc.

(9)National defence(modern warfare uses information and advanced mobile equipment as attack tools), the bubbling concrete can be used in military projects damaged by enemy bombing, such as airports, important traffic highways, etc., for immediate rush repair, using our equipment and technology It can quickly repair the enemy's damaged project. The result of the experiment is that it can be used for aircraft takeoff and landing 10 minutes after the repair, and the tank passes.

(10) Application on highway

1) Reduce load or earth pressure

① Replacement of the Subgrade on the back of the newly built highway abutment: effectively solve the problem of project settlement left by insufficient preloading of the soft foundation section;

② Replacement of the Subgrade back of the abutment of the old road: the problem of bridgehead jump caused by the post-construction settlement can be completely solved at one time;

③ Widened roadbed filling in road expansion: better solve the problem of differential deformation of new and old roadbeds, save land acquisition and avoid demolition;

④ Subgrade filling of steep road sections in mountainous areas: avoid technical construction problems caused by high filling and high excavation;

⑤ For overburdening of underground large-span structural engineering.

2) Self-levelling characteristics

① Filling of Dong and narrow spaces;

② Mined-out area, lava area, building foundation pits, voids formed by a tunnel collapse and voids around underground pipelines.

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