High-strength composite material for caulking, repair and water prevention of concrete/inorganic plate and preparation method thereof

Abstract

The invention relates to a high-strength composite material for caulking, repair and water prevention of a concrete / inorganic plate, which comprises a modified polymer emulsion and cement dry-mixed mortar bi-component system. The powder mainly comprises the following components in percentage by mass: 100 percent of cement, 70-180 percent of fine sand, 180-70 percent of medium sand and 1-5 percent of intermediate-efficacy water reducing agent; the liquid comprises the following components in percentage by mass: 7-14 percent of emulsion, 2-7 percent of water and 0.07-0.7 percent of defoaming agent and is mainly prepared by adding water and the defoaming agent into the polymer emulsion. The emulsion adopts a styrene-acrylic emulsion or pure acrylic emulsion or chloroprene emulsion or butadiene-styrene emulsion. The powder is mixed and uniformly stirred in a power mixing machine according to a prescription proportion and packaged for later use. The invention has water repellency, excellent corrosive resistance, simple material source, convenient operation, and cost saving and can recover the favorable use performance of the concrete / inorganic plate structure.

Description

technical field [0001] The invention relates to a composite material for concrete / inorganic boards and a preparation method thereof, in particular to a composite material for caulking, repairing and waterproofing of high-strength concrete / inorganic board structures and a preparation method thereof. Background technique [0002] Concrete is a heterogeneous brittle material mixed with sand and gravel aggregates, cement, water and other external materials. Due to a series of problems such as concrete construction, its own deformation and constraints, concrete cracks have become the most common engineering diseases in civil engineering, water conservancy, bridges, tunnels and other projects. The light ones cause corrosion of internal steel bars and other materials, reduce the bearing capacity and durability of reinforced concrete materials, and seriously threaten people's lives and property. [0003] During the use of concrete, plastic cracking due to its own characteristics wi...

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Problems solved by technology

[0003] During the use of concrete, plastic cracking due to its own characteristics will lead to problems such as water leakage and water seepage in the matrix that directly affect the performance of the use; moreover, if the necessary repairs are not carried out after the surface cracks, the concrete structure will be exposed to corrosion for a long time. , will seriously reduce the durability of concrete using

The hole wall of the inorganic plate is thin and after the wall is pasted, the pasting surface will be hollowed out and cracked due to different stresses

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