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Dry mixed mortar

A technology of dry-mixed mortar and fine sand, which is applied in the field of construction material mortar to achieve the effect of increasing strength, small bulk density and superior compression resistance

Inactive Publication Date: 2011-07-20
UNIV OF JINAN +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the performance of the ferroalloy slag artificial sand modified by alkaline modifying liquid still has a lot of room for excavation.

Method used

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  • Dry mixed mortar

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0046] A dry-mixed masonry mortar, the weight ratio of the mortar is: cement: coarse sand: medium sand: fine sand: fly ash: steel slag powder: cellulose ether = 10:25:18:30:8:9:0.03 , The viscosity of a 2% aqueous solution of cellulose ether at 20°C is 100,000 centipoise. The cement is 32.5 produced by Shandong Shanshui Cement Group #Ordinary Portland cement, fly ash is the secondary ash discharged from Jinan Huangtai Power Plant. The above-mentioned materials are mixed and stirred evenly on the dry-mixed mortar production line of Jinan Yongquan New Building Materials Co., Ltd. according to their weight ratios, and the dry-mixed masonry mortar labeled DMM15 is made.

[0047] The properties of the tested mortar are shown in Table 1.

Embodiment 2

[0049] A dry-mixed plastering mortar, the weight ratio of the mortar is: cement: medium sand: fine sand: tuff powder: slag powder: cellulose ether = 12: 35: 37: 8: 8: 0.03, cellulose ether 2% The aqueous solution has a viscosity of 150,000 centipoise at 20°C. The cement is 32.5 produced by Shandong Shanshui Cement Group # Ordinary Portland cement and slag powder are produced by Jinan Yongquan New Building Materials Co., Ltd. The above-mentioned materials are mixed and stirred evenly on the dry-mixed mortar production line of Jinan Yongquan New Building Materials Co., Ltd. according to their weight ratios, and the dry-mixed plastering mortar labeled DPM15 is made.

[0050] The properties of the tested mortar are shown in Table 1.

Embodiment 3

[0052] A dry-mixed floor mortar, the weight ratio of the mortar is: cement: coarse sand: medium sand: fine sand: fly ash: slag powder: tuff fine powder: steel slag fine powder: cellulose ether=20:20:25:20 : 4: 3: 4: 4: 0.03, the viscosity of 2% aqueous solution of cellulose ether is 110000 centipoise at 20 ℃. The cement is 32.5 produced by Shandong Shanshui Cement Group # Ordinary Portland cement, fly ash is secondary ash discharged from Jinan Huangtai Power Plant, and slag powder is produced by Jinan Yongquan New Building Materials Co., Ltd. The above-mentioned materials are mixed and stirred evenly on the dry-mixed mortar production line of Jinan Yongquan New Building Materials Co., Ltd. according to their weight ratios, and the dry-mixed floor mortar labeled DSM20 is made.

[0053] The properties of the tested mortar are shown in Table 1.

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Abstract

The invention relates to a common dry mixed mortar in the field of construction mortar materials. By using artificial sand of ferro-alloy furnace slag modified by an alkaline modification liquid as the raw material, the dry mixed mortar comprises the following specific raw materials in parts by weight: 8-25 parts of silicate cement, 0-40 parts of coarse sand, 10-40 parts of medium sand, 10-40 parts of fine sand, 5-10 parts of pulverized fuel ash or tuff micropowder or mixture thereof, 5-10 parts of mining slag powder or steel slag micropowder or mixture thereof and 0.03 part of cellulose ether. After being weighed according to a certain weight ratio and being uniformly mixed and stirred on a dry mixed mortar production line, the powdery or granular materials can be prepared into various grades of dry mixed masonry mortars, dry mixed plastering mortars and dry mixed flooring mortars. The invention can realize the comprehensive utilization of industrial waste slag, solve the problems of farmland occupation and environmental pollution, and achieve the national economy development goals of construction resource saving, environment friendliness and sustainable development.

Description

technical field [0001] The invention relates to the technical field of building material mortar, in particular to a dry-mixed mortar prepared by using ferroalloy slag. Background technique [0002] The main raw materials for the production of dry-mixed mortar are: cement, lime, gypsum, fly ash, slag powder, sand, admixtures, etc. At present, the aggregates in dry-mixed mortar mainly use natural sand, which is a non-renewable local resource. With the increasing development of national infrastructure construction, natural sand resources have gradually decreased in many areas of our country, or even no natural sand resources. Therefore, artificial sand prepared from industrial waste residues instead of natural sand is an important way to produce dry-mixed mortar. [0003] Ferroalloy slag is industrial waste slag produced during ferroalloy smelting. According to the different types of ferroalloy produced, ferroalloy slag can be divided into ferromanganese alloy slag, ferrosil...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C04B28/04C04B18/14
CPCC04B40/0608C04B28/04C04B20/1085Y02W30/91C04B14/14C04B18/08C04B18/141C04B18/142C04B20/0076C04B20/008C04B24/383C04B20/1066
Inventor 付兴华宋义勇陈广立陶文宏刘世军
Owner UNIV OF JINAN
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