Anti-cracking, wear-resistant and seepage-proof compound mortar and preparation method thereof

Abstract

The invention discloses anti-cracking, wear-resistant and seepage-proof compound mortar. The anti-cracking, wear-resistant and seepage-proof compound mortar is prepared from raw materials in parts by weight as follows: 20-30 parts of long and short reinforcing fiber, 15-20 parts of a waterproof additive, 10-20 parts of gelatine powder, 10-16 parts of a composite aid, 10-14 parts of glass beads, 65-75 parts of Portland cement, 55-65 parts of fine sand, 35-45 parts of composite filling sand, 1-2 parts of triethanolamine and 1-3 parts of sodium tripolyphosphate. The compound mortar has excellent anti-cracking, wear-resistant and efflorescence preventing properties and has better water resistance, seepage-proof property and adhesion force, relatively excellent impact resistance and thermal insulation and sound insulation effects and a certain pollutant air absorption function; besides, according to the provided preparation method, the material cost is lower, raw materials are easy to obtain, the process is simple, and the compound mortar has higher practical value and excellent application prospects.

Description

technical field [0001] The invention relates to the technical field of building mortar materials, in particular to a crack-resistant, wear-resistant and anti-seepage composite mortar and a preparation method thereof. Background technique [0002] Cement mortar, also known as mortar, is a building material mixed with inorganic cementitious material, fine aggregate and water in proportion. It is mostly used in masonry and plastering projects in building construction to achieve building structure and surface protection and decoration. Traditional mortar materials generally include cement, water, river sand, etc. In order to improve the strength and crack resistance of the building structure mortar layer, gypsum, lime plaster or fibrous reinforcing materials can often be added. The surface of buildings made of cement mortar can maintain a certain strength in the early stage, but as time goes by, it is prone to pan-alkali, cracking, leakage, peeling, etc. [0003] On the one han...

AI Technical Summary

Problems solved by technology

The surface of buildings made of cement mortar can maintain a certain strength in the early stage, but as time goes by, it is prone to efflorescence, cracking, leakage, peeling, etc.

[0003] On the one hand, in hydraulic construction projects, the concrete on the overflow dam surface, water delivery tunnel, spillway or apron, etc., is often subjected to high-speed water flow or high-speed water flow with sand and stones, and is prone to wear, voids, etc. Corrosion and other damage phenomena not only directly or indirectly affect the normal and safe operation of the project, but also cost a lot of maintenance and repair

Existing anti-abrasion materials have exposed many problems during the construction process and in the later stages of the site. For example, the early strength of the silica fume series anti-abrasion concrete develops too quickly, the strength increases slightly in the middle and late stages, the release of heat of hydration is concentrated, and the dry Shrinkage and self-drying shrinkage are large, and cracks are prone to occur; modified epoxy anti-scourrence mortar and protective coating still contain more volatile solvent components, and the ease of construction in wet and watery environments has not been significantly improved , the flexibility is still insufficient, and it is easy to hollow, crack and peel off in pieces