Sand based permeable dry mix and mixture thereof

A technology for mixing materials and mixtures, applied in the field of concrete, can solve problems such as short construction allowable delay time and environmental pollution, and achieve the effects of solving ready-mixed production and prohibiting on-site mixing, convenient use and rich varieties.

Inactive Publication Date: 2017-01-11
CHONGQING CONSTR ENG NEW BUILDING MATERIALS +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] In view of the above-mentioned shortcomings of the prior art, the purpose of the present invention is to provide a sand-based permeable dry mix and its admixture, which is used to solve the problem that the pre-mixed method is rarely used in the surface layer permeable admixture in the prior art. The way of production and mixing on site will cause serious pollution to the environment, and the allowable delay time of construction is relatively short, etc.

Method used

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  • Sand based permeable dry mix and mixture thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0028] A sand-based water-permeable dry-mixed mixture, including the following raw materials by weight: 300 parts of P.O42.5 cement, 60 parts of S95 grade slag powder, 18 parts of SR type ecological permeable concrete enhancer, particle size 2.5-5mm 1648 parts of aggregate, 0.62 parts of polycarboxylic acid water-reducing agent powder, 0.38 parts of hydroxypropyl methyl cellulose ether, and 0.38 parts of regulator.

[0029] All the above-mentioned raw materials are dried and kept dry after cooling. The above-mentioned raw materials are mixed according to the formula amount to prepare a sand-based permeable dry-mixed mixture, which is sealed and stored.

[0030] When in use, water is added to the sand-based permeable dry-mixed mixture to prepare a sand-based permeable mixture. In this embodiment, the weight of water added is 5.4% of the weight of the dry-mixed mixture.

Embodiment 2

[0032] A sand-based water-permeable dry-mixing material, including the following raw materials by weight: 360 parts of P.O42.5 cement, 30 parts of S95 grade slag powder, 25 parts of SR type ecological permeable concrete enhancer, particle size 1.25-2.5 mm aggregates 1495 parts, polycarboxylic acid water reducing agent powder 0.81 parts, hydroxypropyl methyl cellulose ether 0.41 parts, regulator 0.41 parts, iron oxide green 15 parts.

[0033] All the above-mentioned raw materials are dried and kept dry after cooling. The above-mentioned raw materials are mixed according to the formula amount to prepare a sand-based permeable dry-mixed mixture, which is sealed and stored.

[0034] When in use, water is added to the sand-based permeable dry-mixed mixture to obtain a sand-based permeable mixture. In this embodiment, the weight of the added water is 5.6% of the weight of the dry-mixed mixture.

Embodiment 3

[0036] A sand-based water-permeable dry-mixed mixture, including the following raw materials by weight: 320 parts of P.O42.5 cement, 40 parts of S95 grade slag powder, 23 parts of SR type ecological permeable concrete enhancer, particle size 0.63-1.25 mm aggregate 1483 parts, polycarboxylic acid water reducer powder 0.77 parts, hydroxypropyl methyl cellulose ether 0.38 parts, regulator 0.38 parts.

[0037] All the above-mentioned raw materials are dried and kept dry after cooling. The above-mentioned raw materials are mixed according to the formula amount to prepare a sand-based permeable dry-mixed mixture, which is sealed and stored.

[0038] When in use, water is added to the sand-based permeable dry-mixed mixture to obtain a sand-based permeable mixture. In this embodiment, the weight of water added is 6.0% of the weight of the dry-mixed mixture.

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Abstract

The invention provides sand based permeable dry mix and a mixture thereof. The dry mix comprises the following raw materials: cement, slag powder, reinforcer, and aggregate, and water reducer, moisture holding thickener, modifier and colorant. The sand based permeable dry mix enriches the varieties of dry mixes, fills up the blank of permeable dry-mix materials and solves the problem of difficulty to pre-mixing production and prohibition of site stirring in the existing sand based permeable dry mix and is high in application flexibility, and thereby effectively relieving the difficulties confronted in production and quality control.

Description

Technical field [0001] The invention relates to the field of concrete, in particular to a sand-based permeable dry-mixed mixture and a mixture thereof. Background technique [0002] The General Office of the State Council issued the "Guiding Opinions on Promoting the Construction of Sponge Cities" in October 2015 to deploy and promote the construction of sponge cities, coordinate natural ecological functions and artificial intervention functions, effectively control rainwater runoff, and realize natural accumulation, natural infiltration, and natural purification The way of urban development. Sand-based permeable dry-mixed mixture can be used as an excellent material for permeable paving, used as the surface layer or other parts of the two-color composite layer permeable concrete, and can give full play to its function in moisture penetration. [0003] The preparation and use of sand-based permeable dry-mixed mixture is similar to dry-mixed mortar. From a certain point of view, it...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C04B28/04
CPCC04B28/04C04B2111/00284C04B2201/50C04B18/141C04B2103/0068C04B14/02C04B2103/302C04B2103/44C04B2103/465C04B2103/54C04B22/002
Inventor 石从黎李城杨再富陈敬樊先平
Owner CHONGQING CONSTR ENG NEW BUILDING MATERIALS
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