CN1226533A

CN1226533A - Mixed sintered bricks

Info

Publication number: CN1226533A
Application number: CN 99101675
Authority: CN
Inventors: 毛光辉
Original assignee: Individual
Current assignee: Individual
Priority date: 1999-03-14
Filing date: 1999-03-14
Publication date: 1999-08-25
Anticipated expiration: 2019-03-14
Also published as: CN1081172C

Abstract

A sintered mixture brick is made up of silt on the bed of sea or river (30-70 wt.%), which contains Ca, Si, Cl and Na, hill soil (30-70 wt.%) and powdered coal ash (0.05-0.07 wt.%) through mixing, shaping and sintering. It features low cost and saving useful land.

Description

Mixed sintered bricks

The present invention relates to material of construction, particularly the mixed sintered bricks of making by a certain percentage with foundry loam under the seabed, river and deserted mountain earth.

Fired common brick was a raw material with arable land lower floor clay in the past, be built into rectangular parallelepiped adobe open fire calcination in kiln and form, but serious plough destroying, as with the arable land clay for producing 200,000 big human relations bricks of sintering raw material day, 66520 meters of annual consumptions ³The arable land clay will destroy about 200 mu of arable land grainfield (the every square metre of average digging depth of ploughing is by 50 centimetres of calculating).This is the turnout of a common brick field.Produce if such brick field spreads all over the place widely, then annual will causing ploughed thousands of up to ten thousand mu destroyedly, greatly damages agriculture production, so country prohibites.But fast development along with building, need a large amount of materials for walls, past also attempts with cement brick, Dinas brickes substitute for clay brick, but it is big own wt to occur, and bearing pressure is not enough, especially Highrise buildings, bring and build a wall and carry the big problem of labour intensity, so only adapt to low-rise building, cement brick cost height, Dinas brickes bearing pressure again is not enough.

The objective of the invention is to make mixed sintered bricks as raw material the ordinary fired brick that replaces raw materials such as arable land clay, cement or sand-lime to make with foundry loam under the seabed, river and deserted mountain earth.

Technical scheme of the present invention is by weight accounting for 70～30% and account for 30～70% with deserted mountain earth and mix for containing under the seabed, river of chemical substances such as Ca, Ci, Cl, Na foundry loam, add that to account for a brick weight ratio be 0.05～0.07% waste coal ash, be made into the clay adobe, make mixed sintered bricks with open fire calcination, that is sintering method and common brick is the same.

Advantage of the present invention is 1. to save a large amount of arable lands, as the brick field of 200,000 big human relations bricks of mixed sintering of a daily output, can save 66520 cubic metres of arable land clays the whole year, can protect about 200 mu of grainfield every year; 2. reduce building cost, make full use of foundry loam under deserted mountain earth and the seabed, river; 3. alleviate buildings self pressure, every 1750 gram of the weight of big human relations brick such as cement brick, Dinas brickes, and the big human relations brick of mixed sintering weight has only 1400 grams.A kind of really body of wall type material of mixed sintered bricks, its utilization and extention is to protecting farmland, reduce investment outlay, shaking off poverty and setting out on the road to prosperity, and the in-depth wall reform has important and far-reaching meaning.

Mix with the deserted mountain earth that accounts for weight ratio 30～70% with foundry loam under the seabed, river of containing chemical substances such as Ca, Ci, Cl, Na that accounts for weight ratio 70～30%, add an amount of waste coal ash, account for 0.05～0.07% of a brick weight, be made into the clay adobe with common brick-making method, make mixed sintered bricks with open fire calcination.Its test products detects through Wenzhou City's quality supervision inspection center and the Jian Keyuan of Zhejiang Province, all surpasses national to ordinary fired brick GB5101-93 and GB/T2542-92 standard-required.As quality supervision of construction engineering station, Wenzhou City inspection center mixed sintered bricks is done the mechanical strength test, ultimate compression strength mean value is 25.2Mpa, and standard value is 17.5Mpa.After test through Architectural Science Design Inst. of Zhejiang Prov. again, ultimate compression strength mean value is 23.3Mpa, standard value is 15.8Mpa, and it is 20Mpa that test result surpasses national mean value to ordinary fired brick compressive strength standard MU20 class requirement, and standard value is the ultimate compression strength of 14Mpa.Anti-freezing property is in-15 ℃ to-20 ℃ freezing processes, and the highest rate of loss is 0.9Mpa after the thawing, and minimum rate of loss is 0.1Mpa, tests to the result is less than ordinary fired brick, and rate of loss must not be greater than the requirement of 2.0Mpa after the thawing.Ultimate compression strength mean value after the thawing also remains into 20.7Mpa, has also surpassed the resistance to compression requirement to MU20 grade after the ordinary fired brick thawing.

When making mixed sintered bricks, specifically see condition and certainty ratio, as on the seashore, riverside, foundry loam is abundant under it, the trucking costs cheapness, and then ratio accounts for high; If deserted mountain earth is easily got, then the accounting example is high.Famine at the foot of the hill has river, sea, then equal accounting examples half and half.Account for 50% as foundry loam under the seabed, river, then deserted mountain earth also accounts for 50%, moreover also will look content of chemical substances, and the seabed foundry loam also can adopt the mud on the tidal land.The waste coal ash accounts for 0.05～0.07% of a brick, on the make plays a part to prevent between brick and the brick in the calcining reblocking.

Claims

1, a kind of mixed sintered bricks, it is characterized in that by weight accounting for 70～30% and account for 30～70% with deserted mountain earth and mix for containing under the seabed, river of chemical substances such as Ca, Ci, Cl, Na foundry loam, add that to account for a brick weight ratio be 0.05～0.07% waste coal ash, be made into the clay adobe, make mixed sintered bricks with open fire calcination.