Limestone powder dry powder mortar

A dry powder mortar and stone powder technology, applied in sustainable waste treatment, solid waste management, climate sustainability, etc., can solve problems such as insufficient supply of medium sand

Inactive Publication Date: 2009-03-04
JIANGSU PROVINCIAL CONSTR GRP CO LTD +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] In the past, yellow sand and some additives were mainly used to produce dry powder mortar. As far as yellow sand is concerned, medium sand (fineness modulus 2.

Method used

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  • Limestone powder dry powder mortar
  • Limestone powder dry powder mortar

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0028] Embodiments 1-12 Mix the various raw materials weighed in proportion, add about one-fifth of the total weight of water and stir evenly.

[0029] The fineness modulus of yellow sand is 2.7-3.0, and it is medium sand in the second zone. The fineness modulus of stone powder is between 2.7 and 3.0, and it is graded in the second zone.

[0030] Results: From the test results of 12 ratios in Table 1 and Table 2, it can be seen that the strength is not greatly affected by the increasing amount of stone powder.

[0031] Examples 13-18 Mix the various raw materials weighed in proportion, add water about one-fifth of the weight of the total material and stir evenly. The fineness modulus of the yellow sand used is 2.8, which is medium sand in the second zone. The fineness modulus of stone powder is 2.9, and it is graded in the second zone.

[0032] Results: Through the comparison of Table 3 and Table 4, it is a group of 6 ordinary mortars with different strength grades for tria...

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PUM

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Abstract

The invention relates to a dry powder mortar of stone dust, which is characterized in that the dry powder mortar of the stone dust is mainly formed by cement, fly ash, yellow sand, stone dust or mortar thickening powder. The invention initially takes the stone dust as the raw material of the dry powder mortar, and the mechanical property of the stone dust in the mortar is more excellent than the yellow sand, thereby changing waste into valuables. The invention is economical and environment-friendly.

Description

technical field [0001] The invention belongs to the field of building materials, and in particular relates to a stone powder dry powder mortar. Background technique [0002] Stone powder is the waste produced in the process of producing stones in the quarry. The piled up stone powder causes serious pollution to the environment, and the powder content of stone powder is relatively large, so people do not use stone powder as a raw material for dry powder mortar, thinking that it will affect the strength and other factors. Performance is adversely affected. [0003] In the past, yellow sand and some additives were mainly used to produce dry powder mortar. As far as yellow sand is concerned, medium sand (fineness modulus 2.3-3.0) is required. Because of the large demand for yellow sand in building construction such as wet-mixed concrete, this makes the supply of medium sand insufficient. . [0004] After trial mixing, research and adjustment of different dosages of the same st...

Claims

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Application Information

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IPC IPC(8): C04B28/00C04B18/08C04B14/06
CPCY02W30/91
Inventor 陈正华仇天青张三旗高宝俭毕惠胜温锦明马恒晞孙德锋殷招平周晶
Owner JIANGSU PROVINCIAL CONSTR GRP CO LTD
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