CN1056858A - Make the method for hollow lump from slag concret - Google Patents

Make the method for hollow lump from slag concret Download PDF

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Publication number
CN1056858A
CN1056858A CN 90110103 CN90110103A CN1056858A CN 1056858 A CN1056858 A CN 1056858A CN 90110103 CN90110103 CN 90110103 CN 90110103 A CN90110103 A CN 90110103A CN 1056858 A CN1056858 A CN 1056858A
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CN
China
Prior art keywords
slag
cement
blast furnace
concret
concrete
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
CN 90110103
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Chinese (zh)
Inventor
鲍兴武
朱兴源
王俊波
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Anshan Steel Corp Slag Development Co
Angang Steel Co Ltd
Original Assignee
Anshan Steel Corp Slag Development Co
Angang Steel Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Anshan Steel Corp Slag Development Co, Angang Steel Co Ltd filed Critical Anshan Steel Corp Slag Development Co
Priority to CN 90110103 priority Critical patent/CN1056858A/en
Publication of CN1056858A publication Critical patent/CN1056858A/en
Pending legal-status Critical Current

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Abstract

The present invention relates to a kind of method of making hollow lump from slag concret.Also promptly adopt heavy blast furnace slag powder, piece respectively as thin coarse aggregate, cement is made agglutination material, makes the method for full slag holllow building block in the proper ratio.Can replace hollow brick that traditional Qin brick and Han tile and normal concrete make as the materials for wall of going along with sb. to guard him with load-bearing fully with this holllow building block of check after tested.Saved a large amount of natural resource like this, turned waste into wealth, cost is reduced greatly, remarkable in economical benefits, and reduce the occupation of land of a large amount of slags mountain, and protected the mountain forest field, help the beautification of the environment.

Description

Make the method for hollow lump from slag concret
The invention belongs to the manufacture method of construction material, especially make the method for hollow lump from slag concret.
At present making holllow building block in the world and generally adopt the normal concrete of being made up of sand, stone, cement, is that the concrete that coarse aggregate and cement are formed is made holllow building block (please see utility model patent specification sheets " composite hollow brick " CN86203119U) by adopting natural mineral to make fine aggregate, industrial residue etc. also recently.Wherein use the natural mineral requirement very big, so not only damaged mountain forest, the field resource of China, and cost is very high.China has a large amount of heavy blast furnace slags now in addition, and floor space is big, contaminate environment.
Problem in view of above-mentioned existence; the objective of the invention is to seek a kind of method of making holllow building block with full mineral slag concrete; can suit measures to local conditions, turn waste into wealth, reduce large-area slag mountain takes up an area of; to reduce the cost of manufacture of concrete segment; natural resource free from environmental pollution, as can also to protect nature.
For realizing purpose of the present invention, the measure of being taked and the positively effect of generation are: adopt by heavy blast furnace slag powder, piece do respectively carefully, coarse aggregate, cement is made agglutination material, the full mineral slag concrete manufacturing holllow building block of forming with suitable proportion.Because utilization of waste material, saved a large amount of natural resource, cost is reduced greatly, remarkable in economical benefits is converted into behind the brick valency to compare with the common brick valency and has reduced by 28.8%, and has reduced the slag mountain widely and take up an area of, and has protected the mountain forest field of motherland, helps the beautification of the environment.Show with the practical validation result after tested in addition: every use properties of hollow lump from slag concret all reaches architectural design of JGJ14-8.2 small concrete block and construction regulations requirement.Wall insulation performance is better than common brick, occupies domestic and international advanced level in similar building, can replace common brick and ordinary concrete hollow block fully and go along with sb. to guard him materials for wall with load-bearing.
Introduce the manufacture method of hollow lump from slag concret of the present invention in detail below in conjunction with embodiment.
The present invention be with heavy blast furnace slag powder, piece respectively as concrete thin, coarse aggregate, the chemical constitution of heavy blast furnace slag is more stable, wherein CaO 40~47%, SiO 237~40%, Al 2O 36~8%, MgO 4~8%, and these four kinds of oxide content sums are always more than 95%, and FeO, Fe 2O 3, MnO, S, P 2O 5Content mostly in (weight percentage) below 1%, meet the requirement of the standard YBJ205-84 of Ministry of Metallurgical Industry fully.Heavy blast furnace slag shows that through the check analysis result its mineral composition is: what content was the highest is melilith 40~46%, secondly is Dicalcium Phosphate (Feed Grade) 20~40%, wollastonite 10% and a spot of magnesium rose stone.Newly issue standard " YBJ205~84 concrete heavy blast furnace slag crushing technique condition " regulation by Ministry of Metallurgical Industry, slag specimen to the heavy slag of blast furnace has carried out lime decomposition and ferrimanganic decomposition check, the result shows that slag specimen is excellent, does not have any decomposition sign, and structural stability is qualified.Physical and mechanical property to the heavy blast furnace slag rubble is also tested, and all satisfies the requirement of YBJ205~84 and " dry slag specification ", determines that thus the existing heavy blast furnace slag of China can replace the thin coarse aggregate in the general concrete fully.
The ratio of components of full mineral slag concrete of the present invention is as follows: heavy blast furnace slag is thin, the weight ratio of coarse aggregate is 3: 1, the gross weight of coarse-fine aggregate and the weight ratio of cement are 6~7: 1,3/1000ths and ferrous sulfate of admixture trolamine by mass of cement is 3 percent of cement weight, and water cement ratio is 0.38.
Earlier the coarse-fine aggregate of heavy blast furnace slag is packed in the forced mixer by said ratio, stir, add cement and water (mixing the solid effect of getting up early of admixture trolamine, ferrous easily the closing property of adjusting that plays a part of commercial sulphuric acid) again.
The full mineral slag concrete that stirs is sent into automatic moulding in the hopper of vibrating forming machine, the time of vibratory compaction is minimum to be 20 seconds.
Send into the curing kilns steam curing in batch with the holllow building block of fork truck after with moulding, go into behind the kiln minimum leaving standstill and heat up after 4 hours, heat-up rate per hour is no more than 15 ℃, keeps constant temperature again 8 hours after steam-cured temperature rises to 70~80 ℃.
With fork truck the holllow building block after steam-cured is delivered to outdoor natural Health preservation again, the natural Health preservation phase is minimum to be 28 days.Require water spray, spray water continuously within 7 days, spray water twice every day after 7 days, and morning and afternoon, respectively once this moment, product can use.
Embodiment
As the raw material of making hollow lump from slag concret, its chemical constitution is: CaO46.80%, SiO with the Anshan iron and steel plant heavy blast furnace slag 239.00%, Al 2O 37.40%, MgO4.35%, FeO0.81%, Fe 2O 30.72%, MnO0.46%, S0.50%, P 2O 50.03%.Its mineral composition is: melilith 60%, and Dicalcium Phosphate (Feed Grade) 20%, wollastonite 10%, manganolite is a small amount of.
Its loose volume weight and crush values index such as following table, detected result satisfies YBJ205-84 to 250 #The concrete requirement of heavy blast furnace slag.
The slag kind Through broken number of times Particle diameter (mm) Loose volume weight Kg/m 3 The crush index value
Old slag 1 Below 5 5~20 10~20 1390 1410 1375 1361 1345 1340 11.88 11.11
New slag 1 Below 5 5~20 10~20 1410 1400 1250 1230 1180 1183 15.35 15.90 15.88
New slag 2 Below 5 5~20 10~20 1410 1400 1313 1300 1212 1229 13.92
Its physicals is as follows:
Bulk specific gravity, g/cm 3 Water-intake rate, % Rate of wear, %
New slag Old slag New slag Old slag The strong method of gigawatt The refined Cephas in Lip river
2.637~2.653 2.78~2.796 3.6~3.95 3.35~3.38 Below 10 Below 35
Frost resistance Soundness
Freeze through 15~25 times and to touch circulation Weight loss after metabisulfite solution method circulation 5 times
Excellent Below 1%
((granularity 8~15mm) is done carefully, coarse aggregate, makes agglutination material with cement, and is ferrous as admixture with chemical reagent trolamine and commercial sulphuric acid for granularity 0~8mm) and piece with the powder of Anshan iron and steel plant heavy blast furnace slag with above-mentioned performance and chemistry, mineral composition.250 #The ratio of components of full mineral slag concrete is following (presses 1m 3Various raw material input amounts in the concrete are calculated, and unit is Kg):
Raw water body refuse granulated slag piece trolamine ferrous sulfate
Dosage 330 1,478 493 0.099 0.990
Earlier coarse-fine aggregate is joined in the forced mixer by above-mentioned ratio of components and to stir, add again cement and water (mix admixture trolamine and ferrous sulfate, amount of water be cement weight 38%) stir.
By the building block size, is that 390 * 190 * 190mm, substance be 17.8Kg reinforced send in automatic molder hopper carry out vibratory compaction as main building block Outside Dimensions with the material mixed, and time of vibration is 20 seconds.
Building block after the moulding is sent into curing kilns in batch with fork truck, uses steam curing, goes into to leave standstill behind the kiln to heat up after 4 hours, and heat-up rate per hour is no more than 15 ℃, after steam-cured temperature is raised to 70 ℃, keeps constant temperature again 8 hours.
Steam-cured good holllow building block is delivered to the outer natural Health preservation of kiln, 28 days natural Health preservation phases with fork truck.Require water spray, spray water continuously within 7 days, spray water twice every day after 7 days, and morning and afternoon, respectively once at this moment product was just made.
Made Outside Dimensions is that 390 * 190 * 190mm, substance are 17.5Kg, and void content is 42.24% main holllow building block, and its mechanical property is after tested:
Ultimate compression strength is 8.4Mpa
Folding strength is 2.75Mpa
The freezing-thawing strength damage 10%
Carbonization coefficient 1.80
Contract with dry rate 0.054%
Its mechanical property of masonry that is built into this building block is:
Young's modulus 1.20 * 10 4Mpa is (with 75 #Sand-cement slurry)
Axial compressive strength 4.30 Mpa (")
Eccentric Anti-Pressure intensity 3.66 Mpa (")
Slip resistance 0.61 Mpa (")
The thermal property of masonry is:
Wall total thermal resistance R o=1.1332m 2HK/kcal

Claims (4)

1, a kind of method of making hollow lump from slag concret is to adopt thick, fine aggregate, cement, water, admixture are raw material, are made into after the concrete with suitable proportion, the holllow building block of making behind stirring, moulding, steam curing, natural Health preservation is characterized in that:
A, the heavy furnace clinker of employing blast furnace and powder are made concrete coarse-fine aggregate respectively,
B, concrete ratio of components are: the weight ratio of the coarse-fine aggregate of heavy blast furnace slag is 1: 3, the gross weight of coarse-fine aggregate and cement weight ratio are 6~7: 1,3/1000ths and ferrous sulfate of admixture trolamine by mass of cement is 3 percent of cement weight, and water cement ratio is 0.38.
2, the method for manufacturing full mineral slag concrete hollow block according to claim 1, it is characterized in that the chemical constitution of heavy blast furnace slag is: CaO 40~47%, SiO 237~40%, Al 2O 36~8%, MgO 6~8%, FeO, Fe 2O 3, MnO, S, P 2O 5Respectively in (weight percentage) below 1%.
3, the method for manufacturing hollow lump from slag concret according to claim 1 and 2, it is characterized in that heavy blast furnace slag coarse aggregate granularity must be less than 15 millimeters, fineness modulus (FM) is 5.00~5.30, the granularity of fine aggregate is in 0~8 millimeter scope, and fineness modulus (FM) is 2.80~3.10.
4, the method for manufacturing hollow lump from slag concret according to claim 1, it is characterized in that time of vibratory compaction minimum be 20 seconds, during steam curing, go into behind the kiln minimum leaving standstill after 4 hours and heat up, steam-cured temperature rises to 70~80 ℃ (heat-up rates per hour must not above 15 ℃), then constant temperature is 8 hours, the natural Health preservation phase is minimum takes 28 days, requires water spray summer, water spray continuously in 7 days, spray water twice every day after 7 days, and morning and afternoon respectively once.
CN 90110103 1990-12-22 1990-12-22 Make the method for hollow lump from slag concret Pending CN1056858A (en)

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Application Number Priority Date Filing Date Title
CN 90110103 CN1056858A (en) 1990-12-22 1990-12-22 Make the method for hollow lump from slag concret

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Application Number Priority Date Filing Date Title
CN 90110103 CN1056858A (en) 1990-12-22 1990-12-22 Make the method for hollow lump from slag concret

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CN1056858A true CN1056858A (en) 1991-12-11

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Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1111141C (en) * 2000-11-23 2003-06-11 陈炜 Method for producing baking-free building blocks
CN100351198C (en) * 2003-05-26 2007-11-28 上海积能建筑材料科技有限公司 Light thermal porous brick and producing method thereof
CN106116310A (en) * 2016-06-29 2016-11-16 中国三冶集团有限公司 A kind of containing slag powders with the thermal insulation mortar of polypropylene fibre
CN106145816A (en) * 2016-06-29 2016-11-23 中国三冶集团有限公司 A kind of high water proof fire retardant thermal insulation mortar containing slag powders
CN112341064A (en) * 2020-12-01 2021-02-09 济南黄河路桥建设集团有限公司 Water-permeable cement concrete block and preparation method thereof

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1111141C (en) * 2000-11-23 2003-06-11 陈炜 Method for producing baking-free building blocks
CN100351198C (en) * 2003-05-26 2007-11-28 上海积能建筑材料科技有限公司 Light thermal porous brick and producing method thereof
CN106116310A (en) * 2016-06-29 2016-11-16 中国三冶集团有限公司 A kind of containing slag powders with the thermal insulation mortar of polypropylene fibre
CN106145816A (en) * 2016-06-29 2016-11-23 中国三冶集团有限公司 A kind of high water proof fire retardant thermal insulation mortar containing slag powders
CN112341064A (en) * 2020-12-01 2021-02-09 济南黄河路桥建设集团有限公司 Water-permeable cement concrete block and preparation method thereof
CN112341064B (en) * 2020-12-01 2021-06-29 济南黄河路桥建设集团有限公司 Water-permeable cement concrete block and preparation method thereof

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