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A kind of aluminate cement-based spray mortar and preparation method thereof

A technology of aluminate cement and Portland cement, which is applied in the field of mining, can solve the problems of easy shrinkage and cracking, and the rapid setting performance of spray mortar cannot meet the construction requirements, etc., and achieves fast setting and hardening speed, low production cost, and early strength. high effect

Active Publication Date: 2022-05-31
安徽路源环保科技有限公司
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0004] Aiming at the deficiencies of the current sprayed mortar, the present invention has carried out research and development of aluminate cement-based sprayed mortar. Meet the construction requirements and easy to shrink and crack

Method used

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  • A kind of aluminate cement-based spray mortar and preparation method thereof
  • A kind of aluminate cement-based spray mortar and preparation method thereof
  • A kind of aluminate cement-based spray mortar and preparation method thereof

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Abstract

The invention belongs to the technical field of mining, and in particular relates to an aluminate cement-based spray mortar and a preparation method thereof. The spray mortar is composed of cementitious material, composite admixture, sand, and water in a weight ratio of 1: (0.03~0.06): (1.5~3.0): (0.40~0.50); ​​wherein: the cementitious material is composed of the following parts by weight Composition of raw materials: 20-40 parts of aluminate cement, 20-40 parts of Portland cement, 10-30 parts of slag powder, 10-30 parts of gypsum; the composite admixture is composed of the following raw materials in parts by weight: water reducer 20-30 parts 40 parts, 10-30 parts of slaked lime, 10-30 parts of sodium carbonate, 10-30 parts of sodium bicarbonate, 5-10 parts of redispersible latex powder. The spray mortar of the invention has the characteristics of fast setting and hardening speed, high early strength, slight expansion and the like, and is suitable for engineering application.

Description

A kind of aluminate cement-based spray mortar and preparation method thereof technical field The invention belongs to mining technical field, be specifically related to a kind of aluminate cement-based jet mortar and preparation method thereof Law. Background technique In construction projects such as coal mine construction, highway and railway tunnel excavation, it is necessary to use jet mortar (or jetting concrete) to quickly reinforce the surrounding rock. At present, the commonly used cementitious materials for spray mortar are mostly Portland cement. There are often the following problems: First, the adaptability of Portland cement and accelerators, general Portland cement (belonging to silicate cement) Salt cement) including Portland cement, ordinary Portland cement, composite Portland cement, fly ash Portland cement, slag silica Different types of Portland cement and accelerators often have adaptability problems. If the adaptability is not good, it will ca...

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C04B28/14
CPCC04B28/14C04B2111/00017C04B2111/00155C04B2201/50C04B2201/05C04B7/02C04B7/32C04B22/064C04B22/10C04B22/147C04B18/141C04B14/06C04B2103/302C04B2103/0057Y02W30/91
Inventor 陈青陈清
Owner 安徽路源环保科技有限公司