Wet-mixed masonry mortar prepared by adopting aggregate chips

A technology of masonry mortar and stone chips, which is applied in the field of wet-mix masonry mortar, can solve the problems of poor working performance of wet-mix masonry mortar, particle gradation of stone chips does not meet the requirements, and no fluidity, so as to ensure the use of Continuity, achieve rational utilization, and enhance the effect of water retention

Active Publication Date: 2015-04-08
青岛磊鑫混凝土有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, when stone chips are used instead of river sand to prepare wet-mix masonry mortar, there are often the following two problems: (1) The particle gradation of stone chips does not meet the requirements, resulting in bleeding problems (sinking of mixed coarse aggregate, floating phenomenon of water) ) is serious; (2) The prepared wet-mix masonry mortar has poor working performance, no fluidity and no cohesive force

Method used

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  • Wet-mixed masonry mortar prepared by adopting aggregate chips

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0018] The wet-mix masonry mortar prepared with stone chips is composed of the following components: 180kg cement, 70kg fly ash, 70kg mineral powder, 220kg water, 1400kg stone chips, and 20kg mortar admixture. Wherein, the mortar additive is a thickening agent, and the thickening agent is composed of the following components: 2kg sulfonic acid air-entraining agent, 15kg melamine water reducer, 3kg soft white sugar, 1kg water repellent, 5kg Carboxymethylcellulose sodium and 60kg sodium bentonite. Weigh 20kg from the prepared thickening agent for the preparation of masonry mortar. The particle size of the stone chips is not greater than 4.75mm, and the weight fraction of stone powder in the stone chips is 2-3%; the gradation range of the stone chips is 4.75mm: 10-20; 2.36mm: 25-50; 1.18 mm: 40~50; 0.6mm: 60~90; 0.3mm: 80~95; 0.15mm: 90~100; the fineness modulus is 3.1~4.0. The stone chips contain relatively large particles and powder particles. This graded mixture has high str...

Embodiment 2

[0020] The difference from Example 1 is that the wet-mix masonry mortar prepared with stone chips is composed of the following components: 200kg cement, 80kg fly ash, 50kg mineral powder, 240kg water, 1450kg stone chips, and 5kg mortar admixture. Wherein, the mortar additive is a thickening agent, and the thickening agent is composed of the following components in parts by weight: 3kg sulfonic acid air-entraining agent, 20kg melamine water reducer, 1kg soft white sugar, 2kg water repellent, 6kg sodium carboxymethylcellulose and 40kg sodium bentonite. Weigh 5kg from the prepared thickening agent for the preparation of masonry mortar.

Embodiment 3

[0022] The difference from Example 1 is that the wet-mix masonry mortar prepared with stone chips is composed of the following components: 220kg cement, 60kg fly ash, 60kg mineral powder, 250kg water, 1350kg stone chips, and 12kg mortar admixture. Wherein, the mortar additive is a thickening agent, and the thickening agent is composed of the following components: 4kg sulfonic acid air-entraining agent, 10kg melamine water reducer, 2kg soft white sugar, 3kg water repellent, 4kg Carboxymethylcellulose sodium and 50kg sodium bentonite. Weigh 12kg from the prepared thickening agent for the preparation of masonry mortar.

[0023] Table 1. Performance index of wet-mix masonry mortar prepared in three examples

[0024]

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Abstract

The invention discloses wet-mixed masonry mortar prepared by adopting aggregate chips. The wet-mixed masonry mortar comprises the following components in parts by weight: 18-22 parts of cement, 6-8 parts of pulverized fuel ash, 5-7 parts of mineral powder, 22-25 parts of water, 135-145 parts of aggregate chips and 0.5-2.0 parts of a mortar admixture, wherein the particle size of the aggregate chips is not more than 4.75mm; the mountain flour in the aggregate chips accounts for 2-3 percent by weight; the mortar admixture serves as a thickening agent; the thickening agent comprises the following components in parts by weight: 2-4 parts of a sulfonic acid type air entraining agent, 10-20 parts of a melamine water reducing agent, 1-3 parts of soft sugar, 1-3 parts of a water repellent, 4-6 parts of sodium carboxymethyl cellulose and 40-60 parts of sodium bentonite. The machine-made sand and river sand are replaced by residual aggregate chips after stone processing, the aggregate chips are readily available and low in price, the resources are reasonably utilized, the environmental pollution caused by waste aggregate chips is reduced, and the production cost of the mortar is reduced.

Description

technical field [0001] The invention relates to a building raw material and a production process thereof, in particular to a masonry mortar, in particular to a wet-mixed masonry mortar prepared from stone chips. Background technique [0002] Ordinary site-mixed mortar is mixed with cement, river sand, and clear water, and after hardening, it plays the role of bonding building materials together to form a solid whole. With the technological progress of the construction industry and the improvement of civilized construction requirements, the on-site mixing mortar has increasingly shown its inherent defects, such as unstable mortar quality, large waste of materials, single type of mortar, low degree of civilized construction, and environmental pollution. Therefore, it is imperative to adopt industrially produced ready-mixed mortar, which is an important measure to ensure the quality of construction projects, improve the modernization level of construction, and reduce urban poll...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C04B28/00C04B18/12
CPCY02W30/91
Inventor 胡涛胡琳王赛显刘伟民王作峰
Owner 青岛磊鑫混凝土有限公司
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