CN1463945A

CN1463945A - Coagulation mixture for building construction

Info

Publication number: CN1463945A
Application number: CN02109780A
Authority: CN
Inventors: 张伟
Original assignee: Individual
Current assignee: Individual
Priority date: 2002-06-03
Filing date: 2002-06-03
Publication date: 2003-12-31
Anticipated expiration: 2022-06-03
Also published as: CN1263702C

Abstract

The present invention relates to binding mixture for building. The binding mixture includes binding material and aggregate, the binding material is mixture with cement as main component and the aggregate is iron slag. The aggregate accounts for 40-80 wt% of total binding mixture, of which at least 40 wt% is iron slag, rather than river sand, as aggregate. The present invention has high tensile strength, improved flexibility and elasticity.

Description

The gelling mixture that is used for building structure

Technical field: the present invention relates to a kind of consolidating material that is used for building structure, and can be in water the gelling mixture of setting and harden.

Prior art: cement is consolidating material commonly used in the building trade, it can be in water setting and harden, mix to can be made into mortar or concrete with aggregate.Cement can be divided into many kinds, and commonly used have silicate cement, Portland blast, Portland pozzolana cement and a high-alumina cement etc.

In the use, no matter any cement all need add the aggregate that is made of sand or analogue in system mortar or concrete process, and its consumption is quite big.Because the sand overwhelming majority is to gather from the riverbed away from the working-yard, and just finally obtain through technological processs such as screenings.But because the riverbed is one natural cover for defense of protection water resources, so, gather river sand in large quantities and can destroy the riverbed, influence the eubiosis, also adding simultaneously has higher transportation cost of expense and acquisition cost.

Be used to make above-mentioned various cement and will pass through complicated technological process such as exploitation, pulverizing, roasting usually, so the cost of cement is higher relatively, so, as long as building slab can be satisfied with the load that bear at the position, place, should use cement as few as possible.On the other hand, mortar in the building structure or concrete are mixed by cement and aggregate, and cement is bonded to an integral body as consolidating material with aggregate.But only just can obtain relative homogeneous granules by screening because the sand of formation aggregate or mineral powder etc. are general, therefore, it is difficult to reach the ideal uniform degree, and particles of aggregates is inhomogeneous, according to stoichiometric, just can not reach closely between aggregate and the cement and combine, its unique terms of settlement is exactly the ratio that increases cement; The building structural element that uses this kind method to make simultaneously can not waterproof under the situation of not adding water tight packing; In addition, because the hydration of the contained composition of cement, produce submicroscopic xln with its mortar made or the air-dry rear surface of concrete, and this xln is difficult for other material or concrete fused, so, in case air-dry with mortar or concrete that cement constitutes, as want to repair or more thereon the additional concrete layer will not plan a successor or separating layer, have a strong impact on the quality of buildings or structures by this operation.

As the iron ore slag, it is the waste that iron ore mine is discharged, because it contains number of chemical compositions such as silicon-dioxide, iron powder, aluminium sesquioxide, lime carbonate and magnesiumcarbonate, and the mixture of these oxide compounds and salt etc. can not directly be used as cement or other material useful to the mankind, so existing iron ore slag can only be stacked in the fixed location as trade waste, promptly pollute its surrounding enviroment, also take certain space simultaneously.

A kind of method of utilizing pyrite slag to make mortar, as " pyrite slag mortar product and manufacture method thereof " patent of invention of CN1112529A bulletin, this patent is to utilize pyrite slag, dry powder coal ash and calcium lime powder etc. to mix.The weight percent content of the each component of mortar product is pyrite slag 60-80%, cement 8-20%, dry powder coal ash 5-15%, calcium lime powder 1-3%.Because of the pyrite slag mainly is made of silicon-dioxide and ferric oxide, quality is comparatively hard, and it can only increase the scoriaceous activity of pyrite by grinding rate, causes energy consumption and equipment attrition to increase on the one hand, and then can bring higher tooling cost; Pyrite slag surface in grinding process can produce unbalanced electric charge on the other hand, has caused the mutual reunion between the particle, makes particle become big on the levigated basis.

Summary of the invention: task of the present invention provides a kind of trade waste that utilizes, and specifically utilizes the iron ore slag strong and have the gelling mixture and a method thereof of water-proof function as the adhesivity of aggregate production.

The gelling mixture that is used for building structure proposed by the invention comprises gelling material and aggregate, and its gelling material is made of the blend based on cement, and aggregate is made of the iron ore slag, and aggregate accounts for 40%～80% of this gelling mixture gross weight.Less than 40%, the ratio of its gelling material improves, and can cause the raising of mixture cost as aggregate in the mixture, also reduces the utilization ratio of trade waste simultaneously; And if aggregate is higher than 80%,, be difficult to reach the desired intensity of building slab and every index though can reduce cost greatly.

But described gelling material is mixed by predetermined proportion by cement, lime extract and latex loose powder, and in gelling mixture, also be added with filler, this filler can be made of ether of cellulose and/or Mierocrystalline cellulose, and the weight ratio between its filler and the gelling material is: 1: 4～10.Lime extract is a kind of low alkalinity auxiliary agent, and it is made of the replaceable mixture that goes out calcium ion usually, condenses together and acive calcium ion is easy to relative material, thereby guarantees intensity after this gelling mixture water mixing final set.

But the weight of cement is 6 to 20 times of latex loose powder in the described gelling material, is 2 to 8 times of lime extract.

In the described filler, the weight ratio between ether of cellulose and the Mierocrystalline cellulose is: 1: 6～30.

Also be added with a spot of toughener that is made of calcium formiate in the described gelling mixture, this toughener accounts for 0.1 to 1 of described gelling mixture gross weight.

Described gelling mixture also can be added with 0% to 15% flyash.

At least used 40% trade waste iron ore slag to replace river sand as aggregate in the gelling mixture proposed by the invention, not only cost is very low, but also can avoid destroying riverbed and contaminate environment; Simultaneously, the present invention comprises with cement being main gelling material and the filler thereof that constitutes in gelling mixture, wherein, but the latex loose powder in the gelling material can increase flexibility and counter-bending ability after this mixture final set, and lime extract can will displace Calcium of intensifiens, be very beneficial for this mixture homogeneous, described filler is made of ether of cellulose and Mierocrystalline cellulose, add the less relatively calcium formiate of usage quantity again, not only can increase the tensile strength after the mixture final set, make the flexibility and the elasticity that have after this mixture solidified after the improvement simultaneously; In addition, in mixture, add an amount of flyash, the intensity after the gelling mixture that can be in harmonious proportion solidifies.

Embodiment 1

The gelling mixture proposed by the invention with 1000Kg is example, comprising:

Title quality %

Iron ore slag 500Kg 50

Silicate cement 200Kg 20

Lime extract 80Kg 12

Flyash 80Kg 12

Mierocrystalline cellulose 34Kg 3.4

Ether of cellulose 4Kg 0.4

Calcium formiate 2Kg 0.2

But latex loose powder 20Kg 2

Mentioned component is crushed to predetermined fineness, mixes the back continuously stirring then, add the gelling mixture that aggregate constitutes until evenly promptly can be made into the cement that is similar to proposed by the invention.At the construction field (site), this gelling mixture is stirred by the predetermined proportion water mixing, promptly can be used as mortar or concrete and use.

In the above-described embodiments, can increase or reduce the weight quota of various materials as required,, can increase the scoriaceous usage quantity of iron, even can bring up to 80% as requiring lower building structural element for the stretching Joint strength.

Detect through authoritative department, gelling mixture proposed by the invention, its visual appearance color and luster homogeneous mixes, and no magnetic coagulation phenomenon produces; Its stretching consolidation strength is more than or equal to 0.17MPa with lagging material such as benzene plate bonding the time, and the pressure during with concrete binding is cut Joint strength more than or equal to 1.1MPa, and its tap density is less than or equal to 1300 kilograms for every cubic metre.

Claims

1. the gelling mixture that is used for building structure, it is characterized in that: this kind gelling mixture comprises gelling material and aggregate, its gelling material is made of the blend based on cement, and aggregate is made of the iron ore slag, and aggregate accounts for 40%～80% of this gelling mixture gross weight.

2. gelling mixture according to claim 1 is characterized in that: but described gelling material is mixed by predetermined proportion by cement, lime extract and latex loose powder.

3. gelling mixture according to claim 1 is characterized in that: following material provides as filler in the described gelling mixture: ether of cellulose and/or Mierocrystalline cellulose.

4. according to claim 1 or 2 or 3 described gelling mixtures, it is characterized in that: in the described gelling mixture, the weight ratio between filler and the gelling material is: 1: 4～10.

5. gelling mixture according to claim 1 and 2 is characterized in that: but the weight of cement is 6 to 20 times of latex loose powder in the described gelling material, is 2 to 8 times of lime extract.

6. according to claim 1 or 3 described gelling mixtures, it is characterized in that: in the described filler, the weight ratio between ether of cellulose and the Mierocrystalline cellulose is: 1: 6～30.

7. gelling mixture according to claim 1 and 2 is characterized in that: also be added with a spot of toughener that is made of calcium formiate in the described gelling mixture, this toughener accounts for 0.1 to 1 of described gelling mixture gross weight.

8. gelling mixture according to claim 1 is characterized in that: described gelling mixture also can be added with 0% to 15% flyash.