CN104591590A - Method for preparing admixture using diatomite as main raw material - Google Patents

Method for preparing admixture using diatomite as main raw material Download PDF

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CN104591590A
CN104591590A CN201510088346.6A CN201510088346A CN104591590A CN 104591590 A CN104591590 A CN 104591590A CN 201510088346 A CN201510088346 A CN 201510088346A CN 104591590 A CN104591590 A CN 104591590A
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parts
grinding
diatomite
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CN104591590B (en
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李茜
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Guangzhou Honghan Concrete Co., Ltd
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李茜
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Abstract

The invention discloses a method for preparing an admixture using diatomite as a main raw material. The admixture using diatomite as the main raw material is prepared from the following raw materials: diatomite, dickite, montmorillonite, allophane, vermiculite, mirabilite, polyvinyl alcohol, ferric chloride, borax, gypsum, silicate of soda, ferrous sulfate, methyl cellulose and sodium carbonate. The raw materials for preparing the admixture using diatomite as a main raw material are easy to purchase, the production process is not complicated, the product production is simple, the raw materials are convenient to use in a uniform manner, the production stability is satisfied, the production efficiency is improved, and the cost is reduced.

Description

A kind of take diatomite as the preparation method of the concrete admixture of main raw material
Technical field
The present invention relates to a kind of take diatomite as the concrete admixture of main raw material, and it is the admixture of build concrete, belongs to building material manufacture field.
Background technology
The mechanism of action of different minerals admixture in concrete is not quite similar, mineral additive is in raising concrete while performance, also otherwise performance can be affected, as silicon ash can improve concrete intensity and weather resistance, but the water requirement of silicon ash its volume comparatively large is restricted, and the concrete self-desiccation shrinkage of admixture silicon ash also can increase; The water requirement of breeze is little, and the early age strength of concrete of admixture breeze is lower slightly, self-desiccation shrinkage increases to some extent; The concrete self-desiccation shrinkage change of fly ash is less, use the flyash of high-quality can reduce concrete water requirement to a certain extent, but the resisting carbonization of flyash concrete has certain decline, etc.Research relevant both at home and abroad shows: between mineral additive, mutual compound can produce synergistic effect or super-additive effect (Synergistic), and different sorts mineral additive compound can play respective advantage to reach mutual supplement with each other's advantages effect.As the people such as Wuhan University He Zhen find under study for action, flyash and breeze are 1: 1 in volume ratio, and under being mixed with the condition of a small amount of exciting agent, show good over-superimposed effect, compare the experimental result of singly mixing separately, mortar or concrete performance are greatly improved.
Summary of the invention
The object of the invention is to overcome the deficiencies in the prior art, providing a kind of take diatomite as the preparation method of the concrete admixture of main raw material.
For achieving the above object, the technical solution used in the present invention is as follows:
Take diatomite as a preparation method for the concrete admixture of main raw material, it is characterized in that:
Described preparation method's step is:
Step (1): according to 27 parts, diatomite, dickite 27 parts, montmorillonite 17 parts, malthacite 12 parts, vermiculite 17 parts, 17 parts, saltcake, polyvinyl alcohol 3.6 parts, 3.4 parts, iron(ic) chloride, borax 1.3 parts, 2.8 parts, gypsum, water glass 2.7 parts, 1.1 parts, ferrous sulfate, methylcellulose gum 2.3 parts, 1.6 parts, sodium carbonate, proportioning prepares raw material
Step (2): by 27 parts, diatomite, dickite 27 parts, montmorillonite 17 parts carry out grinding in pulverizer, rotating speed is 120r/min, grinding 9 hours, grinding composition granule degree size is 1.2-1.4mm, afterwards grinding thing is put into High Temperature Furnaces Heating Apparatus, according to heating up at a slow speed, middling speed heats up, be rapidly heated and constant temperature Four processes carries out temperature control and fires: be warming up at a slow speed 300 DEG C with the speed of 2 DEG C/min, 500 DEG C are warming up to afterwards with the speed middling speed of 5 DEG C/min, be rapidly heated to 800 DEG C with the speed of 8 DEG C/min afterwards, then constant temperature is incubated 3 hours; To come out of the stove naturally cooling, after cooling in pulverizer grinding 3 hours again, obtaining mixture A granularity size is 0.8-1mm,
Step (3): by malthacite 12 parts, vermiculite 17 parts, 17 parts, saltcake carry out grinding in pulverizer, rotating speed is 100r/min, grinding 3 hours, and obtaining compound particles granularity size is 0.6-0.8mm, afterwards grinding thing is heated, Heating temperature 700 DEG C, is incubated 2 hours, after cooling in pulverizer grinding 3 hours again, obtaining mixture B granularity size is 0.3-0.5mm
Step (4): step (2) is obtained mixture A and step (3) is obtained mixture B loading in mechanical mixer, mechanically mixing 0.5 hour, pour polyvinyl alcohol 3.6 parts, 3.4 parts, iron(ic) chloride, borax 1.3 parts afterwards into, 2.8 parts, gypsum, water glass 2.7 parts, 1.1 parts, ferrous sulfate, methylcellulose gum 2.3 parts, 1.6 parts, sodium carbonate, mechanically mixing 1 hour again, obtaining take diatomite as the adulterant of main raw material.
Take diatomite as a preparation method for the concrete admixture of main raw material, it is characterized in that:
Described preparation method's step is:
Step (1): according to 26 parts, diatomite, dickite 26 parts, montmorillonite 16 parts, malthacite 13 parts, vermiculite 16 parts, 16 parts, saltcake, polyvinyl alcohol 3.4 parts, 3.2 parts, iron(ic) chloride, borax 1.3 parts, 2.4 parts, gypsum, water glass 2.6 parts, 1.7 parts, ferrous sulfate, methylcellulose gum 2.8 parts, 1.9 parts, sodium carbonate, proportioning prepares raw material
Step (2): by 26 parts, diatomite, dickite 26 parts, montmorillonite 16 parts carry out grinding in pulverizer, rotating speed is 120r/min, grinding 9 hours, grinding composition granule degree size is 1.2-1.4mm, afterwards grinding thing is put into High Temperature Furnaces Heating Apparatus, according to heating up at a slow speed, middling speed heats up, be rapidly heated and constant temperature Four processes carries out temperature control and fires: be warming up at a slow speed 300 DEG C with the speed of 2 DEG C/min, 500 DEG C are warming up to afterwards with the speed middling speed of 5 DEG C/min, be rapidly heated to 800 DEG C with the speed of 8 DEG C/min afterwards, then constant temperature is incubated 3 hours; To come out of the stove naturally cooling, after cooling in pulverizer grinding 3 hours again, obtaining mixture A granularity size is 0.8-1mm,
Step (3): by malthacite 13 parts, vermiculite 16 parts, 16 parts, saltcake carry out grinding in pulverizer, rotating speed is 100r/min, grinding 3 hours, and obtaining compound particles granularity size is 0.6-0.8mm, afterwards grinding thing is heated, Heating temperature 700 DEG C, is incubated 2 hours, after cooling in pulverizer grinding 3 hours again, obtaining mixture B granularity size is 0.3-0.5mm
Step (4): step (2) is obtained mixture A and step (3) is obtained mixture B loading in mechanical mixer, mechanically mixing 0.5 hour, pour polyvinyl alcohol 3.4 parts, 3.2 parts, iron(ic) chloride, borax 1.3 parts afterwards into, 2.4 parts, gypsum, water glass 2.6 parts, 1.7 parts, ferrous sulfate, methylcellulose gum 2.8 parts, 1.9 parts, sodium carbonate, mechanically mixing 1 hour again, obtaining take diatomite as the adulterant of main raw material.
The preparation method of described with diatomite the is concrete admixture of main raw material, it is 0.9mm that step (2) obtains mixture A granularity size.
The preparation method of described with diatomite the is concrete admixture of main raw material, it is 0.4mm that step (3) obtains mixture B granularity size.
The preparation method of described with diatomite the is concrete admixture of main raw material, diatomite composition is (weight): 80.2%SiO 2, 5.7%Al 2o 3, 0.68%Fe 2o 3, 1.1%CaO, 1.62%MgO, 10.7% loss on ignition.
The preparation method of described with diatomite the is concrete admixture of main raw material, dickite composition is (weight): 61.1%SiO 2, 31.3%Al 2o 3, 1.2%Fe 2o 3, 1.1%CaO, 0.5%MgO, 4.8% loss on ignition.
Compared with prior art, the present invention has following beneficial effect:
1, the preparation of base sample: adopt cement 450g, sand 650g, stone 1100 g, water consumption 225ml, according to, and shaping 40 × 40 × 160mm test specimen, temperature 20 ± 2 DEG C, humidity is maintenance under the condition of more than 90%.
2, the preparation of test sample: adopt cement 414g, that prepare take diatomite as the adulterant 36g of main raw material, sand 650g, stone 1100 g, water consumption 225ml, according to, and shaping 40 × 40 × 160mm test specimen, temperature 20 ± 2 DEG C, humidity is maintenance under the condition of more than 90%.
By obtained with diatomite be the adulterant of main raw material substitute the cement of 8 ﹪ time, concrete test sample ultimate compression strength is after testing: 3 days ultimate compression strength is 17.8MPa, 28 days ultimate compression strength is 41.7MPa, with under similarity condition not in addition diatomite be compared with the base sample ultimate compression strength of the adulterant of main raw material, within 3 days, ultimate compression strength improves 4.3MPa, and within 28 days, ultimate compression strength improves 3.5MPa.Of the present invention is that the adulterant starting material of main raw material are easily purchased with diatomite, and production technique is uncomplicated, is simply easy to produce product, convenient and can evenly use in use procedure, meets the stability of producing, and improves production efficiency, provide cost savings.
Embodiment
Embodiment 1
Take diatomite as a preparation method for the concrete admixture of main raw material, it is characterized in that:
Described preparation method's step is:
Step (1): according to 27 parts, diatomite, dickite 27 parts, montmorillonite 17 parts, malthacite 12 parts, vermiculite 17 parts, 17 parts, saltcake, polyvinyl alcohol 3.6 parts, 3.4 parts, iron(ic) chloride, borax 1.3 parts, 2.8 parts, gypsum, water glass 2.7 parts, 1.1 parts, ferrous sulfate, methylcellulose gum 2.3 parts, 1.6 parts, sodium carbonate, proportioning prepares raw material
Step (2): by 27 parts, diatomite, dickite 27 parts, montmorillonite 17 parts carry out grinding in pulverizer, rotating speed is 120r/min, grinding 9 hours, grinding composition granule degree size is 1.2-1.4mm, afterwards grinding thing is put into High Temperature Furnaces Heating Apparatus, according to heating up at a slow speed, middling speed heats up, be rapidly heated and constant temperature Four processes carries out temperature control and fires: be warming up at a slow speed 300 DEG C with the speed of 2 DEG C/min, 500 DEG C are warming up to afterwards with the speed middling speed of 5 DEG C/min, be rapidly heated to 800 DEG C with the speed of 8 DEG C/min afterwards, then constant temperature is incubated 3 hours; To come out of the stove naturally cooling, after cooling in pulverizer grinding 3 hours again, obtaining mixture A granularity size is 0.8-1mm,
Step (3): by malthacite 12 parts, vermiculite 17 parts, 17 parts, saltcake carry out grinding in pulverizer, rotating speed is 100r/min, grinding 3 hours, and obtaining compound particles granularity size is 0.6-0.8mm, afterwards grinding thing is heated, Heating temperature 700 DEG C, is incubated 2 hours, after cooling in pulverizer grinding 3 hours again, obtaining mixture B granularity size is 0.3-0.5mm
Step (4): step (2) is obtained mixture A and step (3) is obtained mixture B loading in mechanical mixer, mechanically mixing 0.5 hour, pour polyvinyl alcohol 3.6 parts, 3.4 parts, iron(ic) chloride, borax 1.3 parts afterwards into, 2.8 parts, gypsum, water glass 2.7 parts, 1.1 parts, ferrous sulfate, methylcellulose gum 2.3 parts, 1.6 parts, sodium carbonate, mechanically mixing 1 hour again, obtaining take diatomite as the adulterant of main raw material.
Embodiment 2
Take diatomite as a preparation method for the concrete admixture of main raw material, it is characterized in that:
Described preparation method's step is:
Step (1): according to 26 parts, diatomite, dickite 26 parts, montmorillonite 16 parts, malthacite 13 parts, vermiculite 16 parts, 16 parts, saltcake, polyvinyl alcohol 3.4 parts, 3.2 parts, iron(ic) chloride, borax 1.3 parts, 2.4 parts, gypsum, water glass 2.6 parts, 1.7 parts, ferrous sulfate, methylcellulose gum 2.8 parts, 1.9 parts, sodium carbonate, proportioning prepares raw material
Step (2): by 26 parts, diatomite, dickite 26 parts, montmorillonite 16 parts carry out grinding in pulverizer, rotating speed is 120r/min, grinding 9 hours, grinding composition granule degree size is 1.2-1.4mm, afterwards grinding thing is put into High Temperature Furnaces Heating Apparatus, according to heating up at a slow speed, middling speed heats up, be rapidly heated and constant temperature Four processes carries out temperature control and fires: be warming up at a slow speed 300 DEG C with the speed of 2 DEG C/min, 500 DEG C are warming up to afterwards with the speed middling speed of 5 DEG C/min, be rapidly heated to 800 DEG C with the speed of 8 DEG C/min afterwards, then constant temperature is incubated 3 hours; To come out of the stove naturally cooling, after cooling in pulverizer grinding 3 hours again, obtaining mixture A granularity size is 0.8-1mm,
Step (3): by malthacite 13 parts, vermiculite 16 parts, 16 parts, saltcake carry out grinding in pulverizer, rotating speed is 100r/min, grinding 3 hours, and obtaining compound particles granularity size is 0.6-0.8mm, afterwards grinding thing is heated, Heating temperature 700 DEG C, is incubated 2 hours, after cooling in pulverizer grinding 3 hours again, obtaining mixture B granularity size is 0.3-0.5mm
Step (4): step (2) is obtained mixture A and step (3) is obtained mixture B loading in mechanical mixer, mechanically mixing 0.5 hour, pour polyvinyl alcohol 3.4 parts, 3.2 parts, iron(ic) chloride, borax 1.3 parts afterwards into, 2.4 parts, gypsum, water glass 2.6 parts, 1.7 parts, ferrous sulfate, methylcellulose gum 2.8 parts, 1.9 parts, sodium carbonate, mechanically mixing 1 hour again, obtaining take diatomite as the adulterant of main raw material.

Claims (6)

1. be a preparation method for the concrete admixture of main raw material with diatomite, it is characterized in that:
Described preparation method's step is:
Step (1): according to 27 parts, diatomite, dickite 27 parts, montmorillonite 17 parts, malthacite 12 parts, vermiculite 17 parts, 17 parts, saltcake, polyvinyl alcohol 3.6 parts, 3.4 parts, iron(ic) chloride, borax 1.3 parts, 2.8 parts, gypsum, water glass 2.7 parts, 1.1 parts, ferrous sulfate, methylcellulose gum 2.3 parts, 1.6 parts, sodium carbonate, proportioning prepares raw material
Step (2): by 27 parts, diatomite, dickite 27 parts, montmorillonite 17 parts carry out grinding in pulverizer, rotating speed is 120r/min, grinding 9 hours, grinding composition granule degree size is 1.2-1.4mm, afterwards grinding thing is put into High Temperature Furnaces Heating Apparatus, according to heating up at a slow speed, middling speed heats up, be rapidly heated and constant temperature Four processes carries out temperature control and fires: be warming up at a slow speed 300 DEG C with the speed of 2 DEG C/min, 500 DEG C are warming up to afterwards with the speed middling speed of 5 DEG C/min, be rapidly heated to 800 DEG C with the speed of 8 DEG C/min afterwards, then constant temperature is incubated 3 hours; To come out of the stove naturally cooling, after cooling in pulverizer grinding 3 hours again, obtaining mixture A granularity size is 0.8-1mm,
Step (3): by malthacite 12 parts, vermiculite 17 parts, 17 parts, saltcake carry out grinding in pulverizer, rotating speed is 100r/min, grinding 3 hours, and obtaining compound particles granularity size is 0.6-0.8mm, afterwards grinding thing is heated, Heating temperature 700 DEG C, is incubated 2 hours, after cooling in pulverizer grinding 3 hours again, obtaining mixture B granularity size is 0.3-0.5mm
Step (4): step (2) is obtained mixture A and step (3) is obtained mixture B loading in mechanical mixer, mechanically mixing 0.5 hour, pour polyvinyl alcohol 3.6 parts, 3.4 parts, iron(ic) chloride, borax 1.3 parts afterwards into, 2.8 parts, gypsum, water glass 2.7 parts, 1.1 parts, ferrous sulfate, methylcellulose gum 2.3 parts, 1.6 parts, sodium carbonate, mechanically mixing 1 hour again, obtaining take diatomite as the adulterant of main raw material.
2. be a preparation method for the concrete admixture of main raw material with diatomite, it is characterized in that:
Described preparation method's step is:
Step (1): according to 26 parts, diatomite, dickite 26 parts, montmorillonite 16 parts, malthacite 13 parts, vermiculite 16 parts, 16 parts, saltcake, polyvinyl alcohol 3.4 parts, 3.2 parts, iron(ic) chloride, borax 1.3 parts, 2.4 parts, gypsum, water glass 2.6 parts, 1.7 parts, ferrous sulfate, methylcellulose gum 2.8 parts, 1.9 parts, sodium carbonate, proportioning prepares raw material
Step (2): by 26 parts, diatomite, dickite 26 parts, montmorillonite 16 parts carry out grinding in pulverizer, rotating speed is 120r/min, grinding 9 hours, grinding composition granule degree size is 1.2-1.4mm, afterwards grinding thing is put into High Temperature Furnaces Heating Apparatus, according to heating up at a slow speed, middling speed heats up, be rapidly heated and constant temperature Four processes carries out temperature control and fires: be warming up at a slow speed 300 DEG C with the speed of 2 DEG C/min, 500 DEG C are warming up to afterwards with the speed middling speed of 5 DEG C/min, be rapidly heated to 800 DEG C with the speed of 8 DEG C/min afterwards, then constant temperature is incubated 3 hours; To come out of the stove naturally cooling, after cooling in pulverizer grinding 3 hours again, obtaining mixture A granularity size is 0.8-1mm,
Step (3): by malthacite 13 parts, vermiculite 16 parts, 16 parts, saltcake carry out grinding in pulverizer, rotating speed is 100r/min, grinding 3 hours, and obtaining compound particles granularity size is 0.6-0.8mm, afterwards grinding thing is heated, Heating temperature 700 DEG C, is incubated 2 hours, after cooling in pulverizer grinding 3 hours again, obtaining mixture B granularity size is 0.3-0.5mm
Step (4): step (2) is obtained mixture A and step (3) is obtained mixture B loading in mechanical mixer, mechanically mixing 0.5 hour, pour polyvinyl alcohol 3.4 parts, 3.2 parts, iron(ic) chloride, borax 1.3 parts afterwards into, 2.4 parts, gypsum, water glass 2.6 parts, 1.7 parts, ferrous sulfate, methylcellulose gum 2.8 parts, 1.9 parts, sodium carbonate, mechanically mixing 1 hour again, obtaining take diatomite as the adulterant of main raw material.
3. take diatomite as the preparation method of the concrete admixture of main raw material as described in claim 1-2, and it is 0.9mm that step (2) obtains mixture A granularity size.
4. take diatomite as the preparation method of the concrete admixture of main raw material as described in claim 1-2, and it is 0.4mm that step (3) obtains mixture B granularity size.
5. take diatomite as the preparation method of the concrete admixture of main raw material as described in claim 1-2, and diatomite composition is (weight): 80.2%SiO 2, 5.7%Al 2o 3, 0.68%Fe 2o 3, 1.1%CaO, 1.62%MgO, 10.7% loss on ignition.
6. take diatomite as the preparation method of the concrete admixture of main raw material as described in claim 1-5, and dickite composition is (weight): 61.1%SiO 2, 31.3%Al 2o 3, 1.2%Fe 2o 3, 1.1%CaO, 0.5%MgO, 4.8% loss on ignition.
CN201510088346.6A 2014-01-25 2014-01-25 A kind of preparation method of the concrete admixture with diatomite as primary raw material Expired - Fee Related CN104591590B (en)

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US11306027B2 (en) * 2020-05-30 2022-04-19 Kelo Structure Self Waterproof Tech Shenzhen Co. Mixed shrinkage reducing agent for concrete and preparation method thereof

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1232000A (en) * 1998-04-16 1999-10-20 北京市海淀区博奥新材料技术研究所 Method for producing artificial admixture for cement and concrete, products thereby and use thereof
CN1603274A (en) * 2004-10-09 2005-04-06 贵阳国华天成磷业有限公司 Concrete mineral admixture-phosphorous slag micropowder and its production method
CN101805138A (en) * 2010-03-16 2010-08-18 云南省建筑科学研究院 Concrete mineral admixture

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1232000A (en) * 1998-04-16 1999-10-20 北京市海淀区博奥新材料技术研究所 Method for producing artificial admixture for cement and concrete, products thereby and use thereof
CN1603274A (en) * 2004-10-09 2005-04-06 贵阳国华天成磷业有限公司 Concrete mineral admixture-phosphorous slag micropowder and its production method
CN101805138A (en) * 2010-03-16 2010-08-18 云南省建筑科学研究院 Concrete mineral admixture

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US11306027B2 (en) * 2020-05-30 2022-04-19 Kelo Structure Self Waterproof Tech Shenzhen Co. Mixed shrinkage reducing agent for concrete and preparation method thereof

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