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Stone-chip concrete mortar

A technology for concrete mortar and stone chips, applied in sustainable waste treatment, solid waste management, climate sustainability, etc., can solve the problem of low utilization rate of stone powder and achieve the effect of improving workability

Inactive Publication Date: 2017-03-22
四川中核艾瑞特工程检测有限公司 +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] Aiming at the problem in the prior art that the utilization rate of stone powder produced during crushing is not high, the present invention provides a stone chip concrete mortar, which uses stone powder as an important component, which can not only improve the utilization rate of natural mineral resources , and at the same time reduce the environmental pollution caused by construction

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0028] A stone chip concrete mortar, the components of the mortar include water, cement, sand and stone powder, and the stone powder is the powder produced during the crushing process of pebbles;

[0029] In terms of parts by mass, the relationship between the water, cement, sand and stone powder is as follows: 100 parts of the water, 200-300 parts of the cement, 150-230 parts of the sand, and 10-20 parts of the stone powder ;

[0030] The particle size of the stone powder is less than 0.08 mm.

[0031] Specifically, the above stone powder can play the role of admixture in the concrete mortar components, and the stone powder particles can make the stone chip concrete mortar mixture have good cohesion, and can achieve the purpose of improving the overall workability of the mortar;

[0032] At the same time, stone powder particles can fill the pores in the mortar, which can enhance the compactness of cement and aggregate, and can improve the impermeability of concrete; the ston...

Embodiment 2

[0038] This embodiment further optimizes this case on the basis of Example 1: the components of the mortar also include coarse aggregates, the coarse aggregates include stone chips and crushed stones, and in parts by mass, the water, The relationship between stone chips and coarse aggregate is as follows: 100 parts of the water, 60-70 parts of the stone chips, and 600-800 parts of the gravel;

[0039]Both the stone chips and gravel are obtained by crushing pebbles, and the particle size of the stone chips is between 0.5 mm and 5 mm, and the particle size of the gravel is between 5 mm and 31.5 mm. This scheme makes full use of the products obtained from pebble crushing, among which, the pebble crushing products account for more than 70% of the concrete mortar, so that large-diameter pebbles can be well used in engineering construction; at the same time, using the above Component ratio, in the case of cement using conventional portland cement, C25 concrete can be obtained. Ther...

Embodiment 3

[0043] On the basis of Example 1, this embodiment provides a specific implementation method: the stone chip concrete mortar is mixed with the following components: 175kg of water, 461kg of cement, 356kg of sand, 30kg of stone powder, 140kg of stone chips, crushed Stone 1252kg, water reducing agent 4.61kg, air-entraining agent 1.38kg, wherein, the cement is Portland cement, the sand is river sand collected from the river bed, and the stone powder, stone chips and gravel are all made of pebbles It is obtained by crushing, and the particle size of the stone chips is between 0.5 mm and 5 mm, the particle size of the crushed stone is between 5 mm and 31.5 mm, and the pebbles are pebbles collected from the river bed, and the above formula C25 concrete can be obtained with a specific mortar, and the pressure bleeding rate of the obtained concrete is about 3%.

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Abstract

The invention discloses stone-chip concrete mortar. Components of the stone-chip concretemortar comprise water, cement, sand and stone powder, wherein the stone powder is the powder generated during the process of scree crushing; according to mass part, the proportions of the water, the cement, the sand and the stone powder are as follows: 100 parts of the water, 200 to 300 parts of the cement, 150 to 230 parts of the sand and 10 to 20 parts of the stone powder; the grain diameter of the stone powder is less than 0.08mm. The concrete mortar provided by the invention takes the stone powder as the important component, not only can the utilization rate of natural mineral resources be improved, but also the pollution to the environment caused by building construction is reduced.

Description

technical field [0001] The invention relates to the technical field of concrete preparation in engineering building construction, in particular to a stone chip concrete mortar. Background technique [0002] In recent years, with the enhancement of people's awareness of environmental protection, natural building materials should be used as much as possible when mixing concrete mortar. For example, for the mined pebbles, the large-diameter pebbles are crushed to several centimeters by crushing equipment to obtain crushed stones. The above crushed stones can be used as coarse aggregate for mortar, so that the utilization rate of natural building materials can be maximized. [0003] The invention patent with the application number: 200810156406.3 provides a stone powder dry powder mortar. The patent discloses a scheme that can use the stone powder produced in the crushing process. In the process of processing stone powder, stone powder will cause serious pollution to the enviro...

Claims

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Application Information

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IPC IPC(8): C04B28/00C04B28/04C04B18/12
CPCC04B28/00C04B28/04C04B14/06C04B18/12C04B14/02C04B2103/302C04B2103/304Y02W30/91
Inventor 李伟黄友芬高奇张辉赤秦玉伟张建平沈媛媛陈海波
Owner 四川中核艾瑞特工程检测有限公司
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