Formula of pumping light aggregate concrete

A technology for lightweight aggregate concrete and formulation, applied in the field of building materials, can solve the problems of difficult pumping of lightweight aggregate concrete, and achieve the effects of solving difficult technical problems in pumping, improving cohesion, and improving workability

Inactive Publication Date: 2012-12-26
HEBEI ZHONGCHENG NEW BUILDING MATERIALS
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  • Abstract
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Problems solved by technology

[0004] The technical problem solved by the present invention is to provide a formula for pumping light aggregate concrete, which can effectively solve the problem of pumping light aggregate concrete, especially the pumping of low-strength grade light aggregate concrete is difficult and prone to pipe plugging , by adjusting the ratio and selecting materials reasonably, solve the difficult technical problems of pumping and improve the construction efficiency

Method used

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Embodiment Construction

[0011] The invention provides a formula for pumping light aggregate concrete, which solves the difficult technical problems of pumping by adjusting the ratio of raw materials, improves the workability of concrete, improves the cohesion of concrete, and increases the pumpability of light aggregate concrete , improve construction efficiency.

[0012] The raw materials of the pumping light aggregate concrete formula include cement, fly ash, glue material, sand, ceramsite, admixture and water, wherein:

[0013] The cement uses P.O42.5 grade cement, and its 28-day compressive strength is 49.6Mpa, and the P.O refers to ordinary Portland cement;

[0014] The fly ash has a fineness of 6.3%, a loss on ignition of 3.6%, and a water demand ratio of 92%, and the weight percentage of the fly ash is 60-80%;

[0015] The sand uses a fineness modulus of 2.4 and a medium sand with a mud content of 1.9%;

[0016] The ceramsite uses crushed stone shale ceramsite with an apparent density of not...

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Abstract

The invention provides a formula of pumping light aggregate concrete. In the formula, the pumping light aggregate concrete comprises cement, coal ash, rubber materials, sand, ceramsite, additive and water, wherein the cement is of P.042.5 level cement and has the 28-day tensile strength of 49.6MPa, the weight percentage of the coal ash is 60-80%, the fineness of the coal ash is 6.3%, the ignition loss is 3.6%, and the water demand ratio achieves 92%; and the weight ratio of the water and the rubber material is 0.44. Compared with the prior art, the formula of pumping light aggregate concrete solves the problem of pumping the light aggregate concrete, prevents pipe blocking, improves the concrete workability by regulating the proportion of raw materials of coal ash and the like, improves the concrete cohesiveness, solves the technical problem of pumping difficulty, and improves the construction efficiency.

Description

technical field [0001] The invention relates to the field of building materials, in particular to a formula for pumping light aggregate concrete. Background technique [0002] Concrete pumping construction technology has been widely used in ordinary concrete structure construction due to its convenient operation mode, and has become the most important means of ordinary concrete construction at present. However, in lightweight aggregate concrete, due to the different physical and mechanical properties of light aggregates from ordinary sandstone aggregates, the related preparation and performance of concrete are quite different from ordinary concrete. , There are many problems in the use of technology, and the implementation of construction technology is therefore limited. It is not as convenient as the ordinary concrete used in large quantities at present, and it is difficult to apply to large-scale engineering construction. It has become an important factor that affects and ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C04B28/04
Inventor 王敏孙辉涛贾谢丽贺江凌
Owner HEBEI ZHONGCHENG NEW BUILDING MATERIALS
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