CN1315751C

CN1315751C - Stone powder aero-concrete

Info

Publication number: CN1315751C
Application number: CNB2005100383283A
Authority: CN
Inventors: 骆文闵
Original assignee: QUANZHOU JIANYOU NEW WALL MATERIAL CO Ltd
Current assignee: QUANZHOU JIANYOU NEW WALL MATERIAL CO Ltd
Priority date: 2005-02-05
Filing date: 2005-02-05
Publication date: 2007-05-16
Anticipated expiration: 2025-02-05
Also published as: CN1657477A

Abstract

The present invention discloses a stone-powder aerated concrete of which the main component is stone-powder waste slag of the plant mixture containing saponin, which is generated in the production process of making plates from granite. The stone-powder aerated concrete is prepared from 50 to 70% of stone-powder waste slag generated by making plates from granite, 3 to 8% of cement, 25 to 38% of lime and 5 to 12% of aluminium powder. The present invention makes full use of the stone-powder waste slag instead of fly ash or sand, and therefore, changes waste into valuable substances; the novel aerated concrete of the present invention has the advantages of good quality and low cost, effectively reduces the ecological environmental pollution caused by the stone-powder waste slag, thoroughly eliminates the stone-powder pollution and creates favorable conditions for the sustainable development of stone production processing industry.

Description

Stone powder aero-concrete

Technical field

The present invention relates to a kind of concrete, particularly a kind of stone flour waste residue that produces with granite plank stuff is the stone powder aero-concrete that main raw material is made.

Background technology

Along with the high speed development of building, adnornment industry, also increasing to the demand of gas concrete and stone material.

Tradition gas concrete is as major ingredient with lime, be equipped with whipping agent and various auxiliary agent is prepared from, it as application number 85105004 Chinese invention patent disclosed " steam pressurized foam concrete and preparation method thereof ", disclose a kind of with lime, sand, gypsum is a main raw, with the aluminium powder is whipping agent, with benzene sulfonic acid sodium salt class washing powder, caustic soda, trolamine and JSF are the steam-pressing aero-concrete of auxiliary agent, because the unit price of gas concrete is very low, every cubic metre of more than 100 yuan of Renminbi, increase and use benzene sulfonic acid sodium salt class washing powder, caustic soda, auxiliary agent such as trolamine and JSF, will inevitably increase cost, and the usage quantity of gas concrete is bigger, product does not have too many technology content, cost improves slightly, will obviously reduce the market competitiveness, so, cost reduces slightly, and commercial significance is clearly just arranged.

The applicant has proposed application for a patent for invention (application number is 03112888.2, name be called " a kind of novel gas concrete ") on February 23rd, 2003, discloses the gas concrete that a kind of major ingredient is a stone flour, and its concrete prescription is: stone flour 50-70%; Cement 1-10%; Lime 20-40%; Aluminium powder 5-12 .This novel gas concrete that utilizes the stone flour waste residue to make for major ingredient, its volume to weight ratio is generally at 400-700kg/m ³Its weight is 1/3 of clay solid brick, 1/5 of normal concrete, thermal and insulating performance are clay brick 3-4 times, and the 4-8 of normal concrete doubly, good sound absorbing power is arranged, have certain intensity and advantage such as can process, can be processed into goods such as building block, wallboard, roof boarding, insulation, heat insulation, be widely used in industry and covil construction, as load-bearing and nonweight-bearing structured material and heat preserving and insulating material, become New Building Materials.Because in this patent application, undeclared used stone flour is granite plank stuff and the stone flour waste residue that produces, causes to disclose insufficiently, files an application again so show.

Summary of the invention

The object of the present invention is to provide a kind of stone powder aero-concrete, it can solve granite plank stuff and the pollution problem of the stone flour waste residue that produces is turned waste into wealth, and high-quality, low cost.

For reaching above-mentioned purpose, solution of the present invention is:

Stone powder aero-concrete, its major ingredient are the stone flour waste residue that granite plank stuff produces.Concrete prescription is:

Granite plank stuff and the stone flour waste residue 50-70% that produces;

Cement 3-8%;

Lime 25-38%;

Aluminium powder 5-12 .

The applicant's location-Quanzhou City, Fujian Province, for grouan abounds with ground, a large amount of grouan are made sheet material at this, though the vital role that can not be ignored has been brought into play in the production of granite building material panel to the Economic development in processing of stone base, but, in rapid economic development, also caused catastrophic environmental issue.The ratio that stone material is produced formed stone flour waste residue and finished product is 3: 7, if the arbitrarily discharging of so big waste residue can make the soil big area harden, harden, and severe contamination problems such as river muddiness, the ecotope of nature will suffer serious destruction.Up to now, still fail to find the way that solves stone flour residue contamination problem well, and can only take mandatory fixed point to stack measure, stop the random discharging of waste residue, the soil that is used to stack waste residue every year is not within minority, the waste residue treatment process of this passiveness not only can not be eradicated and also will lose many land resourcess in pollution problem but also every year and be used to stack stone flour, therefore, find a comprehensive utilization stone flour waste residue, turn waste into wealth, thoroughly eradicate the good method that stone flour pollutes, for the stone material industry provides the outside atmosphere of sustainable development, be relevant government department and stone material dealer's the task of top priority.

The present invention makes fine gas concrete owing to the stone flour waste residue that utilizes granite plank stuff to produce replaces flyash or sand, turns waste into wealth, and need not cost as the stone flour of main raw material(s) at all, and also significant to environment protection.And the amount of required cement, lime also obviously reduces, the manufacturing cost of gas concrete is obviously reduced, simultaneously, owing to grouan is being cut in the process of panel, usually use the mixture (using suds mostly) of saponin plant as lubricant, so the stone flour waste residue that produces in this process has contained grease-removing agents such as washing powder, the stone flour waste residue that uses granite plank stuff and produce is as main raw material of the present invention, the auxiliary agents such as adding grease-removing agent that can default in technology can reduce cost effectively.Simultaneously, the present invention also can have been alleviated the pressure of stone flour waste residue to ecological environmental pollution effectively, thoroughly eradicates stone flour and pollutes, for stone production sustainable development already creates favorable conditions.

The present invention utilizes granite plank stuff and stone powder aero-concrete that the stone flour waste residue that produces is made for major ingredient, and its volume to weight ratio is generally at 400-700kg/m ³Its weight is 1/3 of solid brick, 1/5 of normal concrete, thermal and insulating performance is clay brick 3-4 times, the 4-8 of normal concrete doubly, good sound absorbing power is arranged, have certain intensity and advantage such as can process, can be processed into goods such as building block, wallboard, roof boarding, insulation, heat insulation, be widely used in industry and covil construction, as load-bearing and nonweight-bearing structured material and heat preserving and insulating material, be unique outer wall body material that can satisfy energy-conservation 50% requirement of JGJ26-95 standard in present all outer wall materials, become the novel building energy-saving material.

Embodiment

The stone powder aero-concrete that the present invention discloses, major ingredient is the stone flour waste residue that granite plank stuff produces, and its concrete prescription can have multiple, and it is as follows that this paper only enumerates a kind of concrete prescription:

Granite plank stuff and the stone flour waste residue 50-70% that produces;

Cement 3-8%;

Lime 25-38%;

Aluminium powder 5-12 .

Stone flour is a siliceous material, after slurrying, be equipped with lime and cement (calcareous material), stir casting, get angry in slip by foaming agent (as aluminium powder), hydro-thermal is synthetic under certain temperature, humidity, promptly obtain the novel gas concrete of lightweight, vesicular structure, its volume to weight ratio is generally at 400-700kg/m ³, its weight is 1/3 of solid brick, 1/5 of normal concrete, thermal and insulating performance be clay brick 3-4 doubly, the 4-8 of normal concrete doubly has good sound absorbing power, advantage such as have certain intensity and can process.

The relation list of content of stone powder and volume to weight ratio, ultimate compression strength is as follows:

Content of stone powder (%)	Volume to weight ratio (kg/m ³)	Ultimate compression strength (MPA)
Content of stone powder (%)	Volume to weight ratio (kg/m ³)	Ultimate compression strength (MPA)	50	500	≥2.5
600	≥3.5			500	≥2.5
600	≥3.5	60		550	≥3.0
650	≥4.0			550	≥3.0
650	≥4.0		70	600	≥4.5
700	≥5.0			600	≥4.5

Along with content of stone powder increases, ultimate compression strength increases;

Along with volume to weight ratio increases, ultimate compression strength increases.

When selecting the granite stone powder slag for use,, be rich in SiO because the granite granulated slag itself is a kind of silicate minerals of stabilizer pole ₂, CaO, Al ₂O ₃Deng mineral, and SiO ₂And Al ₂O ₃Can generate high-intensity Calucium Silicate powder with the CaO reaction under certain condition, become a kind of rostone, so the novel gas concrete of making has intensity and every excellent physical and chemical performance comparable with cement.

And owing to grouan is being cut in the process of panel; usually use the mixture (using suds mostly) of saponin plant as lubricant; so the stone flour waste residue that produces in this process has contained grease-removing agents such as washing powder; the stone flour waste residue that uses granite plank stuff and produce is as main raw material of the present invention; not only main raw material(s) need not cost; and significant to environment protection, and the auxiliary agents such as adding grease-removing agent that in technology, can default, comprehensive cost can be reduced effectively.

Claims

1, stone powder aero-concrete, it is characterized in that: the stone flour waste residue that major ingredient produces during for granite plank stuff, this waste residue contains the mixture of saponin plant, and this mixture is the effective constituent of producing the grease-removing agent of above-mentioned gas concrete, and its material fiting ratio is expressed as with weight percentage:

The stone flour waste residue 50-70% that produces during granite plank stuff;

Cement 3-8%;

Lime 25-38%;

Aluminium powder 5-12 .