CN102277922A

CN102277922A - Water permeable brick and preparation method thereof

Info

Publication number: CN102277922A
Application number: CN2011101635200A
Authority: CN
Inventors: 仪桂兰; 史永林; 谢振亚; 叶文成; 董勇
Original assignee: Shanxi Taigang Stainless Steel Co Ltd
Current assignee: Shanxi Taigang Stainless Steel Co Ltd
Priority date: 2011-06-17
Filing date: 2011-06-17
Publication date: 2011-12-14

Abstract

The invention discloses a water permeable brick, belonging to the field of construction materials, comprising surface ingredients and bottom ingredients. The surface ingredients comprise 30-35 weight portions of cement, 60-70 weight portions of water granulated slag with the particle size of more than 2 mm, and 6-8 weight portions of water. The bottom ingredients comprise 28-35 weight portions of cement, 45-55 weight portions of water granulated slag with the particle size of more than 2 mm, and 5.5-7.5 weight portions of water. The raw materials used in the invention are waste materials generated in the industrial production process. According to the invention, the utilization rate of waste resource is increased. The water permeable brick has the compressive strength of 32-40 Mpa, the breaking strength of 4.5-5.5 Mpa, the length of pits of less than 30 mm, the water retention of 0.72 g/cm<2>, and the coefficient of water permeabllity (15 DEG C) of 1.3*10<-2>-1.7*10<-2> cm/s.

Description

A kind of permeable brick and preparation method thereof

Technical field

The present invention relates to a kind of permeable brick and preparation method thereof, belong to constructional materials.

Background technology

Along with the strictness of national novel wall material policy is carried out, traditional is the production of standard sintered constructional materials and the market atrophy gradually of raw material with the clay, the substitute is with the industrial residue is the New Building Materials of main material production, therefore, the research and utilization grain slag is made permeable brick, improves the market competitiveness and the economic benefit of enterprises of novel wall material.

Summary of the invention

The invention provides a kind of method of utilizing grain slag to make permeable brick, promptly is primary raw material with the grain slag, with addition of cement and rubble, makes the method for permeable brick.This method has improved the utilization rate of waste resource.

A kind of permeable brick is made of surface layer batching and bottom batching, and the proportion by weight of surface layer batching is: cement: 30～35 parts; Granularity is greater than the grain slag of 2mm: 60～70 parts; Water: 6 ~ 8 parts; The proportion by weight of bottom batching is: cement: 28～35 parts; Granularity is greater than the grain slag of 2mm: 45～55 parts; Rubble: 18 ~ 23 parts; Water: 5.5～7.5 parts.

The thickness of described surface layer is 8mm;

The granularity of described rubble is≤5 mm.

A kind of permeable brick making step that utilizes grain slag to make is:

Capstock: accurately measure each raw material---adds entry---and add cement under stirring in mixer,---add grain slag and stir standby;

------adding cement and rubble under stirring---adds grain slag and stirs standby underlying material: accurately measure each raw material to add entry in mixer;

Capstock is evenly paved in the mould, and---adding underlying material paves smooth------places vertically after the demoulding---with the pressure compression moulding of 6Mpa that 20 ± 1 ℃ of constant temperature, maintenance is 3 days under the condition of constant humidity 95% ± 3%.

Raw material among the present invention are the discarded objects that produce in the industrial processes, and the present invention has improved the utilization rate of waste resource.The performance of permeable brick is: compressive strength is 32 ~ 40Mpa, and rupture strength is 4.5 ~ 5.5 Mpa, mill hole length＜30mm, water retention 0.72g/cm ², coefficient of permeability (15 ℃) 1.3 * 10 ^-2~ 1.7 * 10 ^-2Cm/s.

The specific embodiment:

Describe the specific embodiment of the present invention in detail below in conjunction with embodiment, but this specific embodiment is not limited to following embodiment.

Embodiment:

(1) by the weighing of following raw material proportion by weight: surface layer: 33 parts of cement, granularity are not less than 67 parts of the grain slags of 2mm, 6.7 parts in water; Bottom: 30 parts of cement, 49 parts of grain slags, 21 parts of the rubbles of granularity≤5 mm, 6 parts in water.

(2) in mixer, add entry earlier, under stirring, add cement, and then add grain slag, stir and do the surface layer standby material;

(3) in mixer, add entry earlier, under stirring, add cement, rubble, and then add grain slag, stir and do the bottom standby material.

(4) the surface layer standby material is evenly paved in the mould, thickness is 8mm; Add the bottom standby material then, it is smooth to pave, and is 6Mpa compression moulding with pressure, and the demoulding is vertically placed, and is 20 ± 1 ℃ at constant temperature, and constant humidity is maintenance 3 days under 95% ± 3% the condition.

Raw material in the foregoing description is 30g for every part.

Claims

1. a permeable brick is made of surface layer batching and bottom batching, it is characterized in that the proportion by weight of surface layer batching is: cement: 30～35 parts; Granularity is greater than the grain slag of 2mm: 60～70 parts; Water: 6 ~ 8 parts; The proportion by weight of bottom batching is: cement: 28～35 parts; Granularity is greater than the grain slag of 2mm: 45～55 parts; The rubble of granularity≤5 mm: 18 ~ 23 parts; Water: 5.5～7.5 parts.

2. a kind of permeable brick according to claim 1 is characterized in that the thickness of described surface layer batching is 8mm.

3. the preparation method of a permeable brick the steps include:

ⅰ, accurately measure each raw material and---in mixer, add entry---and under stirring, add cement,---add grain slag and also stir standby capstock;

------adding cement and rubble under stirring---adds grain slag and stirs and be standby underlying material to add entry in mixer ⅱ, accurately to measure each raw material;

ⅲ, capstock evenly being paved in the mould,---adding underlying material paves smooth------places vertically after the demoulding---with the pressure compression moulding of 6Mpa that 20 ± 1 ℃ of constant temperature, maintenance is 3 days under the condition of constant humidity 95% ± 3%.