Aeolian sand foamed soil and application, aeolian sand foamed soil prefabricated block and application and waterproof foundation

Abstract

The invention discloses aeolian sand foamed soil and application, an aeolian sand foamed soil prefabricated block and application and a waterproof foundation and belongs to the technical field of engineering. The aeolian sand foamed soil is technically characterized by being prepared by uniformly mixing a mixed material of cement and Aeolian sand and foams made of a solution of a foaming agent andwater. The aeolian sand foamed soil prefabricated block is made of the aeolian sand foamed soil through casting mold and maintenance. The waterproof foundation is made by pouring the aeolian sand foamed soil into a foundation and by carrying out maintenance; or the aeolian sand foamed soil prefabricated blocks are laid on the foundation, the aeolian sand foamed soil is poured till the aeolian sand foamed soil prefabricated blocks on the foundation are completely covered, and then the waterproof foundation is made after maintenance. The aeolian sand foamed soil is uniform in foam distributionand has the advantages of self leveling and self compacting; after maintenance, the aeolian sand foamed soil not only has the advantages of heat preservation, thermal insulation and load reduction, but also has excellent water tightness and good mechanical properties.

Description

technical field [0001] The invention relates to the technical field of engineering, more specifically, it relates to an aeolian sofa foam soil and its application, an aeolian sofa foam soil prefabricated block and its application, and a waterproof foundation. Background technique [0002] Foamed concrete is made of foaming agent aqueous solution by physical method, and then the foam is added to the slurry made of cement, aggregate, admixture, admixture and water, etc. After mixing, pouring, natural or Porous concrete made with steam curing. It contains a large number of closed pores, so it shows good physical and mechanical properties and use functions, such as light weight, heat preservation, heat insulation, moisture resistance, sound insulation, water avoidance, etc. Foam concrete is mainly used in wall and roof thermal insulation projects, lightweight concrete components and products, building floor heating systems, large tunnels, high-grade highways and subway backfill...

AI Technical Summary

Problems solved by technology

However, adding waterproofing agent can have varying degrees of impact on the compressive strength, water absorption and penetration height of foamed concrete.

[0004] However, the engineering properties of aeolian sand are poor. In the natural state, the cohesion of aeolian sand is almost zero, the shear strength is low, and it is easy to loosen and displace under the action of external force.

At the same time, the aeolian sand has good water permeability and poor water retention. Even if a large amount of water is added to the sand, the moisture content of the upper layer will decrease due to the rapid penetration of water.

Combined with the characteristics of aeolian sand, it has not been reported that aeolian sand is applied to foam concrete, or even waterproof foam concrete

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