CN104803707A - Method for producing foam building blocks using shale as raw material - Google Patents
Method for producing foam building blocks using shale as raw material Download PDFInfo
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- CN104803707A CN104803707A CN201510207332.1A CN201510207332A CN104803707A CN 104803707 A CN104803707 A CN 104803707A CN 201510207332 A CN201510207332 A CN 201510207332A CN 104803707 A CN104803707 A CN 104803707A
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P40/00—Technologies relating to the processing of minerals
- Y02P40/60—Production of ceramic materials or ceramic elements, e.g. substitution of clay or shale by alternative raw materials, e.g. ashes
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Abstract
The invention relates to a method for producing foam building blocks using shale as a raw material. The method is characterized in that the foam building blocks include the following raw materials in parts by weight: 70-80 parts of shale powder, 20-25 parts of boron mud, 10-15 parts of 42.5 ordinary Portland cement, 1-3 parts of a foaming agent, 0.5-1.0 part of a water reducing agent, 0.1-0.3 part of a coagulant, 0.1-0.3 part of an activator and 0.01-0.1 part of an enhancer. The foam building blocks provided by the invention have the characteristics of being low in cost, excellent in performance, stable in quality, good in strength, anti-freeze thawing, wind-erosion-resistant, anti-seismic, thermal-insulation and soundproof.
Description
Technical field
The invention belongs to the manufacture field of material of construction, particularly relate to a kind of production method of foamed building block of light energy-saving environmental-protection.
Background technology
China be one have a large population and a few land, energy-intensive country.Along with the fast development of construction industry, a large amount of land occupation resource of production of traditional materials for wall solid clay brick (common brick), the contradiction between population, soil, environment is more and more outstanding.China produces the nearly 1.5 hundred million tons of mark coals of materials for wall power consumption every year, and account for 15% of national total energy consumption, national brick and tile enterprise occupies 4,500,000 mu, arable land, and Mei electricity enterprise will discharge more than 200,000,000 ton of flyash and coal gangue every year, not only a large amount of land occupation, and contaminate environment.Therefore, the enterprise of current production solid clay brick will be faced with the crisis of existence, greatly develop energy-conservation, save land, profit is useless, insulation, heat insulation novel wall material, Building Energy-saving Work is advanced to be an instant major issue, if do not taken measures, the Sustainable development of China's economy will be restricted further, according to the General Office of the State Council's [1997] No. 2 files " about propelling modernization of the housing industry, improve the notice of the some suggestions of housing quality " requirement, the history of more than one thousand years production solid clay brick will be terminated in big and medium-sized cities, 170, the whole nation from June, 2003, therefore Development of Novel materials for wall wide market.Materials for wall reform is the fundamental state policy of country from protection soil, protection of the environment, save energy; the Implement of sustainable development strategy; simultaneously to promotion materials for wall structural adjustment and technical progress; improve construction engineering quality and improve building function; promote the Important Action of modernization construction, have very important realistic meaning and far-reaching historic significance.
Shale is a kind of sedimentogeneous rock, by silt particle after the low laying areas such as lake, ocean deposits, through the geological movement of more than one hundred million years, the rock formed under huge pressure and cementation, its particle diameter is less than 2mm, its bedding is obvious, the densification of rock matter is homogeneous, and hardness is low, waterproof, through exploiting, shattering, after processing treatment, it is desirable brick-making raw material.Guangxi shale resource reserve enriches, and verify shale reserves at present and reach 10,000 ten thousand tons, be mainly siliceous shale in shale resource, CaO content is lower, and plasticity index is between 8-17, and chemical composition content and clay basic simlarity, be applicable to producing shale brick very much.
Boron mud is the waste residue that chemical plant and insecticide factory discharge when producing boron magnesium, borax and boric acid.Often producing l ton product will discharge in 3 ~ 4 tons, boron mud, and produce 3000 tons of borax plants per year, day arranges 50 tons, boron mud, and whole nation year arranges more than 100 ten thousand tons, boron mud, there is no and is utilized.
Concerning building materials industry, along with the development of economy, the demand of the conventional gelling material such as cement and materials for wall increases gradually, is faced with the condition that starting material are day by day deficient equally.Therefore, many countries, particularly developed country, all dropped into a large amount of man power and materials, developing high-tech, research and utilization nature and industrial waste substitute natural starting material, produce the eco-cement and the materials for wall that reach ecological requirements.Comprehensive utilization boron mud is one of effective way of environment protection and changing waste into resources.
Summary of the invention
The object of this invention is to provide a kind of with low cost, excellent performance, steady quality, there is the production method of foamed building block of good intensity, freeze-thawing resistant, weather-proof, insulation and sound-proofing properties.
The present invention is achieved in that
A kind of take shale as the method for raw material production foamed building block, it is characterized in that, comprise the raw material of following parts by weight: wherein, shale powder 70 ~ 80 parts, 20 ~ 25 parts, boron mud, 42.5 ordinary portland cement 10 ~ 15 parts, whipping agent 1 ~ 3 part, water reducer 0.5 ~ 1.0 part, setting accelerator 0.1 ~ 0.3 part, exciting agent 0.1 ~ 0.3 part, toughener 0.01 ~ 0.1 part;
Its production stage is as follows:
(1) first carried out pulverizing, sieving by remaining boron mud after the products such as production boric acid, borax, make its particle diameter reach below 0.5mm, after drying, the obtained powdery of grinding, for subsequent use; Carried out by shale pulverizing, sieving, make its particle diameter reach 0.5 ~ 5mm, after drying, the obtained powdery of grinding, for subsequent use;
(2) shale powder, boron mud, 42.5 ordinary portland cements, water reducer, setting accelerator and toughener are added in stirrer stir by weight, then add the water of mixture total weight amount 20 ~ 40%, be stirred into slurry; Again whipping agent and exciting agent are added in stirrer to stir and generate heat for 5 ~ 10 minutes;
(3) mixing dosage is injected mould Unit foaming, maintenance 4 ~ 5 hours at 30 ~ 35 DEG C of temperature, then the demoulding adopt cutting machine cutting forming;
(4) foamed building block of cutting forming is sent into steam curing room, at 60 ~ 70 DEG C of temperature steam-cured 10 ~ 15 hours, through steam-cured product test by lot number qualified after, obtain the finished product of foamed building block.
Above-described whipping agent comprises N-lauroyl L-sodium, sodium lauryl sulphate, tea saponin, Sodium dodecylbenzene sulfonate, polyacrylamide; The weight ratio of N-lauroyl L-sodium, sodium lauryl sulphate, tea saponin, Sodium dodecylbenzene sulfonate, polyacrylamide is 4 ~ 6:4 ~ 6:2 ~ 3:0.2.
The preparation method of above-described water reducer is, methylpropene sodium sulfonate, n-methylolacrylamide and water are joined in reactor, stir, be warming up to 90 ~ 100 DEG C, in reactor, drip ammonium persulphate and vinylformic acid respectively, dropwise rear insulation reaction 2 ~ 3 hours, be cooled to 45 DEG C, adjust pH to 7 ~ 8 by NaOH solution, obtain water reducer.
Above-described setting accelerator is one or more in Tai-Ace S 150, calcium hydroxide, sodium chlorate, trolamine, ethylene glycol.
Above-described exciting agent is two or more the mixture in lime, gypsum, sodium hydroxide, sodium sulfate, calcium aluminate.
Above-described toughener comprises wollastonite powder and redispersable latex powder, and the weight ratio of wollastonite powder and redispersable latex powder is 2 ~ 3:1.
Shale is a kind of sedimentogeneous rock, complicated component, but the joint all with thin laminated or thin slice stratiform, mainly deposited the rock formed through pressure and temperature by clay, but wherein mix the chip and other chemical substances that have quartz, feldspar.According to the composition of its tramp material, can be divided into: calcareous shale, irony shale, siliceous shale, carbonaceous shale, black shale, oil shale etc.; The present invention selects the shale after pulverizing, and particle fineness is 0.5 ~ 5mm.
Boron mud is brown, and particle is very thin, specific surface area 0.35 ~ 0.45m
2/ g, index of plasticity more than 12, unit dry weight, 1.2g/cm
2left and right, about pH9.8.The essential mineral composition of boron mud is: magnesite, quartz, forsterite, serpentine, plagioclase, potassium felspar sand and magnetite; Its main chemical compositions is SiO
2and MgO, and there is a certain amount of Fe
20
3, Ca O and B
2o
3.
The substantive distinguishing features that the present invention gives prominence to and significant progress are:
1, the development and application of shale foamed building block, has saved mass energy, has greatly reduced environmental pollution, can make full use of the weathered rock in deserted mountain, turn waste into wealth, do not destroy and reduce arable land, has saved a large amount of land resources.
2, shale foamed building block is in building uses, and because its thermal property is good, can significantly improve the heat retaining property of buildings, improves comfortable for living, reduces heating energy consumption, reduces CO2 emissions.
3, foamed building block of the present invention has good insulation, heat insulation, lightweight, high-strength, the performance such as antidetonation and high construction efficiency.
4, foamed building block of the present invention adopts shale to be main raw, and carries out composite with boron mud, and resistance to compression, the folding strength of building block increase substantially, and the block surfaces after sintering is smooth, and size is accurate; In addition, boron mud of the present invention is the waste residue that chemical plant and insecticide factory discharge when producing boron magnesium, borax and boric acid, is not only conducive to improving resource utilization; turn waste into wealth, can also land occupation be reduced, protection and environment purification; save the energy, reduce production cost, increase economic efficiency.
5, foamed building block of the present invention has significant thermal and insulating performance, greatly reduce the energy consumption of building, the thermal conductivity of foamed building block of the present invention is less than 0.165w/(m.k), heat insulation effect is 4 times of clay brick, it is 3 times of holllow building block, cool in summer and warm in winter, greatly reduce air-conditioner operation time, save power consumption 30 ~ 50%.
6, in foamed building block block, add tackifier, can improve the quality of products 30 ~ 50%, ultimate compression strength strengthens 20 ~ 30%, and product qualified rate can reach more than 98%.
7, whipping agent of the present invention, can make building block produce and have autonomous closure micropore, block interiors pore shape and porosity are well controlled, and can greatly reduce building block water-intake rate thus improve thawing resistance energy, ensureing the quality of product.
Embodiment
Below in conjunction with embodiment, the present invention is made the following instructions.
embodiment 1
(1) raw material and weight:
Shale powder 70 parts, 20 parts, boron mud, 42.5 ordinary portland cement 10 parts, whipping agent 1 part, water reducer 0.5 part, setting accelerator 0.1 part, exciting agent 0.1 part, toughener 0.01 part:
Its production stage is as follows:
(1) first carried out pulverizing, sieving by remaining boron mud after the products such as production boric acid, borax, make its particle diameter reach below 0.5mm, after drying, the obtained powdery of grinding, for subsequent use; Carried out by shale pulverizing, sieving, make its particle diameter reach 0.5 ~ 5mm, after drying, the obtained powdery of grinding, for subsequent use;
(2) shale powder, boron mud, 42.5 ordinary portland cements, water reducer, setting accelerator and toughener are added in stirrer stir by weight, then add the water of mixture total weight amount 20 ~ 40%, be stirred into slurry; Again whipping agent and exciting agent are added in stirrer to stir and generate heat for 5 ~ 10 minutes;
(3) mixing dosage is injected mould Unit foaming, maintenance 4 ~ 5 hours at 30 ~ 35 DEG C of temperature, then the demoulding adopt cutting machine cutting forming;
(4) foamed building block of cutting forming is sent into steam curing room, at 60 ~ 70 DEG C of temperature steam-cured 10 ~ 15 hours, through steam-cured product test by lot number qualified after, obtain the finished product of foamed building block.
Described whipping agent comprises N-lauroyl L-sodium, sodium lauryl sulphate, tea saponin, Sodium dodecylbenzene sulfonate, polyacrylamide; Described setting accelerator is in Tai-Ace S 150, calcium hydroxide and ethylene glycol; Described exciting agent is lime, gypsum and sodium hydroxide; Described toughener comprises wollastonite powder and redispersable latex powder.
embodiment 2
(1) raw material and weight:
Shale powder 75 parts, 22 parts, boron mud, 42.5 ordinary portland cement 12 parts, whipping agent 2 parts, water reducer 0.6 part, setting accelerator 0.2 part, exciting agent 0.2 part, toughener 0.05 part:
Its production stage is as follows:
(1) first carried out pulverizing, sieving by remaining boron mud after the products such as production boric acid, borax, make its particle diameter reach below 0.5mm, after drying, the obtained powdery of grinding, for subsequent use; Carried out by shale pulverizing, sieving, make its particle diameter reach 0.5 ~ 5mm, after drying, the obtained powdery of grinding, for subsequent use;
(2) shale powder, boron mud, 42.5 ordinary portland cements, water reducer, setting accelerator and toughener are added in stirrer stir by weight, then add the water of mixture total weight amount 20 ~ 40%, be stirred into slurry; Again whipping agent and exciting agent are added in stirrer to stir and generate heat for 5 ~ 10 minutes;
(3) mixing dosage is injected mould Unit foaming, maintenance 4 ~ 5 hours at 30 ~ 35 DEG C of temperature, then the demoulding adopt cutting machine cutting forming;
(4) foamed building block of cutting forming is sent into steam curing room, at 60 ~ 70 DEG C of temperature steam-cured 10 ~ 15 hours, through steam-cured product test by lot number qualified after, obtain the finished product of foamed building block.
Described whipping agent comprises N-lauroyl L-sodium, sodium lauryl sulphate, tea saponin, Sodium dodecylbenzene sulfonate, polyacrylamide; Described setting accelerator is Tai-Ace S 150, calcium hydroxide and sodium chlorate; Described exciting agent is lime, gypsum, sodium hydroxide and calcium aluminate; Described toughener comprises wollastonite powder and redispersable latex powder.
embodiment 3
(1) raw material and weight:
Shale powder 78 parts, 24 parts, boron mud, 42.5 ordinary portland cement 14 parts, whipping agent 2 parts, water reducer 0.8 part, setting accelerator 0.2 part, exciting agent 0.2 part, toughener 0.08 part:
Its production stage is as follows:
(1) first carried out pulverizing, sieving by remaining boron mud after the products such as production boric acid, borax, make its particle diameter reach below 0.5mm, after drying, the obtained powdery of grinding, for subsequent use; Carried out by shale pulverizing, sieving, make its particle diameter reach 0.5 ~ 5mm, after drying, the obtained powdery of grinding, for subsequent use;
(2) shale powder, boron mud, 42.5 ordinary portland cements, water reducer, setting accelerator and toughener are added in stirrer stir by weight, then add the water of mixture total weight amount 20 ~ 40%, be stirred into slurry; Again whipping agent and exciting agent are added in stirrer to stir and generate heat for 5 ~ 10 minutes;
(3) mixing dosage is injected mould Unit foaming, maintenance 4 ~ 5 hours at 30 ~ 35 DEG C of temperature, then the demoulding adopt cutting machine cutting forming;
(4) foamed building block of cutting forming is sent into steam curing room, at 60 ~ 70 DEG C of temperature steam-cured 10 ~ 15 hours, through steam-cured product test by lot number qualified after, obtain the finished product of foamed building block.
Described whipping agent comprises N-lauroyl L-sodium, sodium lauryl sulphate, tea saponin, Sodium dodecylbenzene sulfonate, polyacrylamide; Described setting accelerator is Tai-Ace S 150 and calcium hydroxide; Described exciting agent is lime and sodium hydroxide; Described toughener comprises wollastonite powder and redispersable latex powder.
embodiment 4
(1) raw material and weight:
Shale powder 80 parts, 25 parts, boron mud, 42.5 ordinary portland cement 15 parts, whipping agent 3 parts, water reducer 1.0 parts, setting accelerator 0.3 part, exciting agent 0.3 part, toughener 0.1 part:
Its production stage is as follows:
(1) first carried out pulverizing, sieving by remaining boron mud after the products such as production boric acid, borax, make its particle diameter reach below 0.5mm, after drying, the obtained powdery of grinding, for subsequent use; Carried out by shale pulverizing, sieving, make its particle diameter reach 0.5 ~ 5mm, after drying, the obtained powdery of grinding, for subsequent use;
(2) shale powder, boron mud, 42.5 ordinary portland cements, water reducer, setting accelerator and toughener are added in stirrer stir by weight, then add the water of mixture total weight amount 20 ~ 40%, be stirred into slurry; Again whipping agent and exciting agent are added in stirrer to stir and generate heat for 5 ~ 10 minutes;
(3) mixing dosage is injected mould Unit foaming, maintenance 4 ~ 5 hours at 30 ~ 35 DEG C of temperature, then the demoulding adopt cutting machine cutting forming;
(4) foamed building block of cutting forming is sent into steam curing room, at 60 ~ 70 DEG C of temperature steam-cured 10 ~ 15 hours, through steam-cured product test by lot number qualified after, obtain the finished product of foamed building block.
Described whipping agent comprises N-lauroyl L-sodium, sodium lauryl sulphate, tea saponin, Sodium dodecylbenzene sulfonate, polyacrylamide; Described setting accelerator is Tai-Ace S 150, calcium hydroxide, sodium chlorate, trolamine and ethylene glycol; Described exciting agent is lime, gypsum, sodium hydroxide, sodium sulfate and calcium aluminate; Described toughener comprises wollastonite powder and redispersable latex powder.
The key technical indexes of the present invention:
Illustrate that the ultimate compression strength of foamed building block of the present invention, drying shrinkage value, thermal conductivity, carbonation coefficient and the technical indicator such as freeze proof are all higher than national standard or industry standard.
engineering example
Liuzhou City's boat star garden residence cellular engineering project, gross building area 190,000 m
2, building non-bearing metope adopts foamed building block of the present invention, and so far, construction quality is good, and thermal property is up to standard, and heat preservation construction is without any customer complaint problem for completion of works in 2013.
Claims (6)
1. one kind take shale as the method for raw material production foamed building block, it is characterized in that, comprise the raw material of following parts by weight: wherein, shale powder 70 ~ 80 parts, 20 ~ 25 parts, boron mud, 42.5 ordinary portland cement 10 ~ 15 parts, whipping agent 1 ~ 3 part, water reducer 0.5 ~ 1.0 part, setting accelerator 0.1 ~ 0.3 part, exciting agent 0.1 ~ 0.3 part, toughener 0.01 ~ 0.1 part;
Its production stage is as follows:
(1) first carried out pulverizing, sieving by remaining boron mud after the products such as production boric acid, borax, make its particle diameter reach below 0.5mm, after drying, the obtained powdery of grinding, for subsequent use; Carried out by shale pulverizing, sieving, make its particle diameter reach 0.5 ~ 5mm, after drying, the obtained powdery of grinding, for subsequent use;
(2) shale powder, boron mud, 42.5 ordinary portland cements, water reducer, setting accelerator and toughener are added in stirrer stir by weight, then add the water of mixture total weight amount 20 ~ 40%, be stirred into slurry; Again whipping agent and exciting agent are added in stirrer to stir and generate heat for 5 ~ 10 minutes;
(3) mixing dosage is injected mould Unit foaming, maintenance 4 ~ 5 hours at 30 ~ 35 DEG C of temperature, then the demoulding adopt cutting machine cutting forming;
(4) foamed building block of cutting forming is sent into steam curing room, at 60 ~ 70 DEG C of temperature steam-cured 10 ~ 15 hours, through steam-cured product test by lot number qualified after, obtain the finished product of foamed building block.
2. according to claim 1 take shale as the method for raw material production foamed building block, it is characterized in that: described whipping agent comprises N-lauroyl L-sodium, sodium lauryl sulphate, tea saponin, Sodium dodecylbenzene sulfonate, polyacrylamide; The weight ratio of N-lauroyl L-sodium, sodium lauryl sulphate, tea saponin, Sodium dodecylbenzene sulfonate, polyacrylamide is 4 ~ 6:4 ~ 6:2 ~ 3:0.2.
3. according to claim 1 take shale as the method for raw material production foamed building block, it is characterized in that: the preparation method of described water reducer is, methylpropene sodium sulfonate, n-methylolacrylamide and water are joined in reactor, stir, be warming up to 90 ~ 100 DEG C, in reactor, drip ammonium persulphate and vinylformic acid respectively, dropwise rear insulation reaction 2 ~ 3 hours, be cooled to 45 DEG C, adjust pH to 7 ~ 8 by NaOH solution, obtain water reducer.
4. according to claim 1 take shale as the method for raw material production foamed building block, it is characterized in that: described setting accelerator is one or more in Tai-Ace S 150, calcium hydroxide, sodium chlorate, trolamine, ethylene glycol.
5. according to claim 4 take shale as the method for raw material production foamed building block, it is characterized in that: described exciting agent is two or more the mixture in lime, gypsum, sodium hydroxide, sodium sulfate, calcium aluminate.
6. according to claim 1 take shale as the method for raw material production foamed building block, and it is characterized in that: described toughener comprises wollastonite powder and redispersable latex powder, the weight ratio of wollastonite powder and redispersable latex powder is 2 ~ 3:1.
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|---|---|---|---|
| CN201510207332.1A CN104803707A (en) | 2015-04-28 | 2015-04-28 | Method for producing foam building blocks using shale as raw material |
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|---|---|---|---|
| CN201510207332.1A CN104803707A (en) | 2015-04-28 | 2015-04-28 | Method for producing foam building blocks using shale as raw material |
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106187282A (en) * | 2016-07-18 | 2016-12-07 | 柳州弘蓝科技有限公司 | A kind of shale heat-preservation building blocks with multiple holes |
| CN106396734A (en) * | 2016-09-28 | 2017-02-15 | 何伟祖 | Damp-proof anti-microbial anti-cracking high-strength light building block or batten used for building |
| CN106830778A (en) * | 2016-12-20 | 2017-06-13 | 闻豪 | The method that high-performance aerated building block is prepared using shale |
| CN108569905A (en) * | 2018-06-17 | 2018-09-25 | 刘玉清 | A kind of ceramics liquefacient and preparation method thereof |
| CN110092666A (en) * | 2019-05-21 | 2019-08-06 | 广西中添新型材料有限公司 | A kind of foamed ceramics and preparation method thereof |
| CN111348894A (en) * | 2020-04-07 | 2020-06-30 | 江西鼎盛新材料科技有限公司 | Preparation method for producing ceramic foam board by using lepidolite tailings |
| CN113788700A (en) * | 2021-09-28 | 2021-12-14 | 龙岩学院 | Method for preparing high-performance insulating brick by utilizing solid waste sludge |
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Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106187282A (en) * | 2016-07-18 | 2016-12-07 | 柳州弘蓝科技有限公司 | A kind of shale heat-preservation building blocks with multiple holes |
| CN106396734A (en) * | 2016-09-28 | 2017-02-15 | 何伟祖 | Damp-proof anti-microbial anti-cracking high-strength light building block or batten used for building |
| CN106830778A (en) * | 2016-12-20 | 2017-06-13 | 闻豪 | The method that high-performance aerated building block is prepared using shale |
| CN108569905A (en) * | 2018-06-17 | 2018-09-25 | 刘玉清 | A kind of ceramics liquefacient and preparation method thereof |
| CN110092666A (en) * | 2019-05-21 | 2019-08-06 | 广西中添新型材料有限公司 | A kind of foamed ceramics and preparation method thereof |
| CN111348894A (en) * | 2020-04-07 | 2020-06-30 | 江西鼎盛新材料科技有限公司 | Preparation method for producing ceramic foam board by using lepidolite tailings |
| CN111348894B (en) * | 2020-04-07 | 2022-04-08 | 江西鼎盛新材料科技有限公司 | Preparation method for producing ceramic foam board by using lepidolite tailings |
| CN113788700A (en) * | 2021-09-28 | 2021-12-14 | 龙岩学院 | Method for preparing high-performance insulating brick by utilizing solid waste sludge |
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