CN100450953C

CN100450953C - Method for changing building garbage into brick slag concrete

Info

Publication number: CN100450953C
Application number: CNB2004100608051A
Authority: CN
Inventors: 高山清; 高劲松; 林涛; 张宁武; 王家满; 华来喜; 文翔; 吴慕岚; 陈曦
Original assignee: Individual
Current assignee: Individual
Priority date: 2004-09-07
Filing date: 2004-09-07
Publication date: 2009-01-14
Anticipated expiration: 2024-09-07
Also published as: CN1587167A

Abstract

The present invention discloses one method for changing building rubbish into brick slag concrete, which relates to a method for using building rubbish. The present invention takes building rubbish as raw material to make into concrete aggregate and comprises the steps as follows: (1) the building rubbish is selected; (2) pulverization and screening are carried out; (3) cement, yellow sand and water are mixed in the selected building rubbish according to a certain proportion and are stirred into concrete; (4) the concrete is placed in a forming mould for shaping; (5) after shaping and demoulding, the concrete is cured according to curing requirements of cement concrete. The present invention has the advantages of simple methods, easy execution, low cost and good economic benefit, changes the building rubbish into useful material, saves farmland, lightens the pressure of urban transportation, can form new industry, solves a problem of employment for a portion of people and has large social benefits.

Description

Building waste converts the method for brick-slag concrete to

Technical field

The present invention relates to the method that a kind of building waste utilizes, specifically, relate to the method that building waste converts brick-slag concrete to.

Background technology

Particularly in old urban renewal process, will produce a large amount of building wastes inevitably in urban construction, handle these building wastes is a troubling thing always, also is a difficult problem that troubles government and builder for many years.

In order to protect farmland, government once repeated injunctions and banned use of solid clay brick.But, although the honeycomb fashion clay brick that uses can be saved certain clay at present, because the building brick demand is especially big, so will corrode a large amount of arable lands, this is populous for one and countries and regions that resource is very limited use the phenomenon of clay brick not continued in a large number again.And the use concrete brick, the cost height, weight is big, and is also impracticable; Current praised highly most add the vapour fly ash building block, be difficult to mass production again because of being subjected to raw-material restriction.The paces that the existence of above-mentioned these factors causes solid clay brick to withdraw from construction market obviously slow down.

Summary of the invention

How purpose of the present invention above-mentionedly manyly handles difficult problems such as building waste and instead of clay brick if just being to solve, and provide a kind of building waste to convert the method for brick-slag concrete to.

The object of the present invention is achieved like this.

Mainly be to be that starting material are made into concrete aggregate with the building waste, as shown in Figure 1, its step is as follows:

1. select building waste for use

According to the investigation to a plurality of building wastes scene, the building waste branch can be six big classes:

The first, brick slag class comprises solid clay brick, cellular clay brick, rubble; Account for 75-85%.

The second, coagulation great soil group comprises cement concrete, Steel Concrete; Account for 0.6-1%.

Three, ash bits class comprises lime, sand, grout ash; Account for 10-15%.

Four, ceramic-like comprises floor tile, ceramic tile, marble; Account for 0.2-0.24%.

Five, category of glass; Account for 0.001-0.002%

Six, other class comprises not segregative as plastics, paint etc.; Account for 0.91%.

2. crush and screen

Different because of the hardness that building waste is all kinds of, pulverize so make up respectively.

2. crush and screen

A, brick slag class, ash bits class, ceramic-like, category of glass mixed crush and screen with stoning machine;

B, the coagulating cement great soil group is crushed and screened separately with stoning machine;

3. 2. A stirs into concrete in practical ratio adding cement, yellow sand, water;

As when the brick slag is 1 cubic metre, add cement 200Kg; Yellow sand 400Kg; Water 200Kg.

2. B stirs into recycling cement concrete in practical ratio adding cement, yellow sand, water;

4. it is in-molded to insert moulding

5. will be behind the shaping and demoulding by the curing requirements maintenance of cement concrete.

The qualitative data of building block:

Detect through quality testing department, mean compressive strength is 13.9MPa; So the quality of the test block of this brick-slag concrete building block is higher than solid or structural clay tile.

The present invention has the following advantages and positively effect:

1. method is simple, implements easily;

2. cost is low, and is good in economic efficiency;

3. turn waste into wealth, save and plough;

4. because urban architecture rubbish is many, use building brick also many, therefore can gather materials on the spot converts building waste to brick-slag concrete, building waste need not be transported the city and abandon and building brick is transported the city, will alleviate the pressure of city transportation like this.

5. can form a kind of new industry, solve the problem of employment of some people, social benefit is huge.

Therefore the present invention has wide application prospect.

Description of drawings

Fig. 1 is the invention process block diagram.Wherein:

1-selects building waste for use;

2-crushes and screens;

3-stirs into concrete;

The 4-moulding;

The 5-maintenance.

Embodiment

1, screening is decided to be 4 grades by screen cloth eye square aperture size:

The 1st grade is 50mm-35mm;

The 2nd grade is 35mm-15mm;

3rd level is 15mm-5mm;

The 4th grade is below the 5mm.

2, building block specification can be made the multiple model of three major types in conjunction with current international and domestic standard:

A, solid block

480mm * 120mm * 120mm or 240mm * 120mm * 120mm;

B, holllow building block

480mm * 240mm * 180mm or 240mm * 240mm * 180mm;

C, cellular

480mml * 240mm * 180mm or 240mm * 180mm * 120mm.

Or make other various special-shaped products or standard brick as required.

Claims

1, a kind of building waste converts the method for brick-slag concrete to, it is characterized in that being is that starting material are made into concrete aggregate with the building waste, and its step is as follows:

1. select building waste for use;

2. crush and screen

Brick slag class, ash bits class, ceramic-like and the mixing of category of glass building waste are crushed and screened with stoning machine;

3. add cement, yellow sand and water in practical ratio and stir into concrete;

4. it is in-molded to insert moulding;

2, convert the method for brick-slag concrete by the described a kind of building waste of claim 1 to, it is characterized in that screening, be decided to be 4 grades by screen cloth eye square aperture size:

The 1st grade is 50mm-35mm;

The 2nd grade is 35mm-15mm;

3rd level is 15mm-5mm;

The 4th grade is below the 5mm.

3, convert the method for brick-slag concrete by the described a kind of building waste of claim 1 to, it is characterized in that building block specification can make the multiple model of three major types in conjunction with current international and domestic standard, or make extraordinary special-shaped product as required:

A, solid block

480mm * 120mm * 120mm or 240mm * 120mm * 120mm;

B, holllow building block

480mm * 240mm * 180mm or 240mm * 240mm * 180mm;

C, cellular

480mml * 240mm * 180mm or 240mm * 180mm * 120mm.