CN102126846A - Manufacturing method for high pumping concrete - Google Patents
Manufacturing method for high pumping concrete Download PDFInfo
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- CN102126846A CN102126846A CN 201010591819 CN201010591819A CN102126846A CN 102126846 A CN102126846 A CN 102126846A CN 201010591819 CN201010591819 CN 201010591819 CN 201010591819 A CN201010591819 A CN 201010591819A CN 102126846 A CN102126846 A CN 102126846A
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- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B28/00—Compositions of mortars, concrete or artificial stone, containing inorganic binders or the reaction product of an inorganic and an organic binder, e.g. polycarboxylate cements
- C04B28/02—Compositions of mortars, concrete or artificial stone, containing inorganic binders or the reaction product of an inorganic and an organic binder, e.g. polycarboxylate cements containing hydraulic cements other than calcium sulfates
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Abstract
The invention relates to a manufacturing method for high pumping concrete, and belongs to the technical field of engineering construction materials. The manufacturing method comprises the following steps of: weighing silicate cement, ultrafine powder, river sand or washed sea sand, gravel, water and a water reducer according to a proportion, pouring the weighed silicate cement and ultrafine powder into a stirrer, and stirring; adding the weighed river sand or washed sea sand, and stirring; pouring the weighed water and water reducer, and stirring; and pouring the weighed gravel, and stirring to obtain the concrete. The concrete manufactured by the method can retain plasticity for a long time, so that slump, expansion and rewinding time are basically invariable for 3 to 4 hours, and bleeding is prevented; therefore, the requirements of an ultrahigh pumping technology are met.
Description
Technical field
The present invention relates to a kind of manufacture method of high pump concrete, belong to engineering construction material technology field.
Background technology
The ultra-high performance concrete of the external intensity 〉=140MPa that produces all adopts and hangs blue construction now, and prepares with high-efficiency water-reducing agent of poly-carboxylic acid.This concrete manufacturing cost height, viscosity is big, so pumping construction is very difficult.Guangzhou Xi Ta engineering project portion for example, super high pump-conveying the ultra-high performance concrete of C100, also prepare with high-efficiency water-reducing agent of poly-carboxylic acid.But ultra-high performance concrete often will be mixed high efficiency water reducing agent because water-cement ratio is on the low side more, could reduce concrete viscosity, improves flowability and pumpability.But when part high-efficiency water-reducing agent of poly-carboxylic acid volume 〉=0.6% (solid content) was arranged, concrete did not solidify in 4 days, and this will cause serious engineering accident, and naphthalene series high-efficiency water-reducing agent, when being used for preparing the C60 concrete, because viscosity is big, pumping construction is very difficult.Use sulfamate high-effective water-reducing agent, during the above high performance concrete of preparation C60, volume high slightly will bleeding, at the bottom of the occasion, also can't pumping construction.Therefore, prepare the above ultra-high performance concrete of C100 both at home and abroad and all adopt high-efficiency water-reducing agent of poly-carboxylic acid, but the cost height is generally all used and hung blue construction.
Summary of the invention
The objective of the invention is to propose a kind of manufacture method of high pump concrete, use extraordinary ultrafine powder kind special efficient water reducer, change existing ultra-high performance concrete and only use the product method that becomes of high-efficiency water-reducing agent of poly-carboxylic acid and silica flour, and enhance product performance, reduce product cost, save and produce the energy and resource.
The manufacture method of the high pump concrete that the present invention proposes comprises following each step:
(1) by following mass percent, the concrete material of weighing:
Silicate cement 24～25
Ultrafine powder 10～11
River sand or wash extra large sand 27～28
Rubble 32～33
Water 4.5～5.0
Water reducer 1.0～1.1;
(2) silicate cement and the ultrafine powder of weighing are poured in the stirrer, stirred 40～80 seconds; Add the river sand of weighing or wash extra large sand, stirred 30～60 seconds; Pour the water and the water reducer of weighing into, stir after 40～80 seconds, pour the rubble of weighing into, stir after 60～90 seconds, obtain concrete.
In the above-mentioned manufacture method, described water reducer is made up of A component and B component, and the mass ratio of A component and B component is: the A component: B component=1: 1.5, wherein:
The mass percent of each raw material is in the A component:
Naphthalene series high-efficiency water-reducing agent 40～50
Natural zeolite ultrafine powder 50～60
The B component is the sulfamate based water reducer of solid content 33%, and the preparation method of sulfamate based water reducer is as follows:
(2-1) by following mass ratio, the raw material of weighing:
165 parts of Sodium sulfanilates
95 parts of phenol
15 parts in sodium hydroxide
15 parts in urea
3 parts of trolamines
190 parts in formaldehyde
500 parts in water
(2-2) Sodium sulfanilate, phenol, sodium hydroxide, trolamine and the water with above-mentioned weighing drops in the reactor, and stir on the limit, the limit is heated to 85～90 ℃, and the formaldehyde with weighing slowly adds in the reactor then, adds in 1-1.5 hour; Again the urea of weighing is dropped in the reactor, continuously stirring, be heated to 90～95 ℃, react discharging after 8-8.5 hour.
The manufacture method of the high pump concrete that the present invention proposes, the concrete of manufacturing can be protected for a long time and mould, and makes the slump, divergence and rewinding time constant substantially at 3～4 hours, and bleeding has not guaranteed the requirement of super high pump-conveying technology again.In the used raw material of present method, using has the composite cementitious material system that forms of microballon ultrafine powder, silica flour and cement, and water storage is low, degree of compactness is high, therefore makes the concrete strength height.Present method is by using extraordinary ultrafine powder and special efficient water reducer, reached protect mould, the enhanced function, make mix earth have that superstrength has can super high pump-conveying.The concrete of present method manufacturing has the superstrength of 140MPa, can be more than the super high pump-conveying 300m.In the manufacture method of the present invention, use extraordinary ultrafine powder and special efficient water reducer, change existing ultra-high performance concrete and only use the production method of high-efficiency water-reducing agent of poly-carboxylic acid and silica flour, make concrete flowability, intensity and the weather resistance of manufacturing all be better than existing concrete.The ultra-high performance concrete that the inventive method is made can arrive 316 meters height by one pump from ground, and the low cost of manufacture of product, has saved the energy of manufacture course of products and used resource, is a kind of concrete of low carbon technique.
Embodiment
The manufacture method of the high pump concrete that the present invention proposes comprises following each step:
(1) by following mass percent, the concrete material of weighing:
Silicate cement 24～25
Ultrafine powder 10～11
River sand or wash extra large sand 27～28
Rubble 32～33
Water 4.5～5.0
Water reducer 1.0～1.1;
(2) silicate cement and the ultrafine powder of weighing are poured in the stirrer, stirred 40～80 seconds; Add the river sand of weighing or wash extra large sand, stirred 30～60 seconds; Pour the water and the water reducer of weighing into, stir after 40～80 seconds, pour the rubble of weighing into, stir after 60～90 seconds, obtain concrete.
In the above-mentioned manufacture method, described water reducer is made up of A component and B component, and the mass ratio of A component and B component is: the A component: B component=1: 1.5, wherein:
The mass percent of each raw material is in the A component:
Naphthalene series high-efficiency water-reducing agent 40～50
Natural zeolite ultrafine powder 50～60
The B component is the sulfamate based water reducer of solid content 33%, and the preparation method of sulfamate based water reducer is as follows:
(2-1) by following mass ratio, the raw material of weighing:
165 parts of Sodium sulfanilates
95 parts of phenol
15 parts in sodium hydroxide
15 parts in urea
3 parts of trolamines
190 parts in formaldehyde
500 parts in water
(2-2) Sodium sulfanilate, phenol, sodium hydroxide, trolamine and the water with above-mentioned weighing drops in the reactor, and stir on the limit, the limit is heated to 85～90 ℃, and the formaldehyde with weighing slowly adds in the reactor then, adds in 1-1.5 hour; Again the urea of weighing is dropped in the reactor, continuously stirring, be heated to 90～95 ℃, react discharging after 8-8.5 hour.
Below introduce the embodiment of the inventive method:
Embodiment 1:
(1) by following mass percent, the concrete material of weighing:
Silicate cement 23
Ultrafine powder 11
River sand or wash extra large sand 28
Rubble 32
Water 5
Water reducer 1;
(2) silicate cement and the ultrafine powder of weighing are poured in the stirrer, stirred 40 seconds; Add the river sand of weighing or wash extra large sand, stirred 40 seconds; Pour the water and the water reducer of weighing into, stir after 50 seconds, pour the rubble of weighing into, stir after 70 seconds, obtain concrete.
The concrete that the foregoing description 1 is made is divided into two parts, and a sealing is deposited in indoor, and another part sealing is deposited under 35 ℃ the sunlight, through 1 hour, 2 hours, 3 hours, measures the slump, divergence, rewinding time and pressure bleeding quantity respectively, and the result is as follows:
After 3 hours, concrete protect plasticity, serviceability are still very excellent, and sunlight down and the test specimen of indoor placement much at one.
With above-mentioned concrete formation 10 * 10 * 10cm test specimen, the demoulding after 24 hours is put in maintenance in the standard curing room, and the ultimate compression strength in the 3 days length of time, 7 days, 28 days is as follows respectively:
The These parameters explanation, the ultra-high performance concrete of manufacturing of the present invention has excellent flowability, pumpability and homogeneity, and can carry out super high pump-conveying.
Embodiment 2:
(1) by following mass percent, the concrete material of weighing:
Silicate cement 24
Ultrafine powder 10
River sand or wash extra large sand 27
Rubble 33
Water 4.8
Water reducer 1.2;
(2) silicate cement and the ultrafine powder of weighing are poured in the stirrer, stirred 40 seconds; Add the river sand of weighing or wash extra large sand, stirred 40 seconds; Pour the water and the water reducer of weighing into, stir after 50 seconds, pour the rubble of weighing into, stir after 70 seconds, obtain concrete.
The ultra-high performance concrete of present embodiment 2 manufacturings and the concrete of polycarboxylate water-reducer preparation are compared.Concrete performance is shown in table-1, concrete strength is shown in table-2, wherein number 1 concrete for the polycarboxylate water-reducer preparation, wherein the solid content of polycarboxylate water-reducer is 40%, volume is 1.5% just can have the model retention effect of the concrete system made from the inventive method when above, and numbering 2 is the ultra-high performance concrete of the present invention's manufacturing.
Table-1 concrete mixture characteristic
Table-2 concrete strengths (MPa)
| The numbering the length of time | 3 days | 7 days | 28 days |
| 1 | ?0 | ?0 | 0 |
| 2 | 87.1 | 102 | 140.3 |
As can be seen from the table, the concrete of polycarboxylate water-reducer preparation can be protected and mould, but after a certain scope of volume superelevation of polycarboxylate water-reducer, concrete coagulation is chronic, and 4 days also noncondensing, so intensity is zero.Though and the volume of water reducer of the present invention is than higher, protect plasticity can be excellent, no delayed coagulation, and time of coagulation is normal, and intensity is also very high.
Embodiment 3:
(1) by following mass percent, the concrete material of weighing:
Silicate cement 23
Ultrafine powder 9
River sand or wash extra large sand 28
Rubble 34
Water 4.5
Water reducer 1.5;
(2) silicate cement and the ultrafine powder of weighing are poured in the stirrer, stirred 60 seconds; Add the river sand of weighing or wash extra large sand, stirred 50 seconds; Pour the water and the water reducer of weighing into, stir after 70 seconds, pour the rubble of weighing into, stir after 80 seconds, obtain concrete.
In the various embodiments described above, the preparation method of the water reducer of use is as follows:
Water reducer is made up of A component and B component, and the mass ratio of A component and B component is: the A component: B component=1: 1.5, wherein:
The mass percent of each raw material is in the A component:
Naphthalene series high-efficiency water-reducing agent 45
Natural zeolite ultrafine powder 55;
The B component is the sulfamate based water reducer of solid content 33%, and the preparation method of sulfamate based water reducer is as follows:
(2-1) by following mass ratio, the raw material of weighing:
165 parts of Sodium sulfanilates
95 parts of phenol
15 parts in sodium hydroxide
15 parts in urea
3 parts of trolamines
190 parts in formaldehyde
500 parts in water;
(2-2) Sodium sulfanilate, phenol, sodium hydroxide, trolamine and the water with above-mentioned weighing drops in the reactor, and stir on the limit, the limit is heated to 88 ℃, and the formaldehyde with weighing slowly adds in the reactor then, adds in 1.2 hours; Again the urea of weighing is dropped in the reactor, continuously stirring, be heated to 92 ℃, react discharging after 8.2 hours.Processing parameter wherein can be according to reaction process corresponding change in specialized range.
In the manufacture method of the present invention, the material place of production or the supplier of use are as follows:
Microballon ultrafine powder: supply with one-tenth limited-liability company by Shenzhen.
Silica flour: zunyi, guizhou province silica flour long production.
Natural zeolite ultrafine powder: by the glad living zeolite formula product of Jinhua, Zhejiang.
Naphthalene series high-efficiency water-reducing agent (pulvis): by Guangdong Huizhou Ruian water reducer factory.
The high-efficiency water-reducing agent of poly-carboxylic acid that uses among the comparative example (solid content 40%): company provides by west, Guangzhou, Guangzhou card high efficiency water reducing agent.Sand: river sand or wash extra large sand, in coarse sand partially, be commercially available.Rubble is supplied by stone quarry, Zhuhai.
Claims (2)
1. the manufacture method of a high pump concrete is characterized in that this method comprises following each step:
(1) by following mass percent, the concrete material of weighing:
Silicate cement 24～25
Ultrafine powder 10～11
River sand or wash extra large sand 27～28
Rubble 32～33
Water 4.5～5.0
Water reducer 1.0～1.1;
(2) silicate cement and the ultrafine powder of weighing are poured in the stirrer, stirred 40～80 seconds; Add the river sand of weighing or wash extra large sand, stirred 30～60 seconds; Pour the water and the water reducer of weighing into, stir after 40～80 seconds, pour the rubble of weighing into, stir after 60～90 seconds, obtain concrete.
2. manufacture method as claimed in claim 1 is characterized in that wherein said water reducer is made up of A component and B component, and the mass ratio of A component and B component is: the A component: B component=1: 1.5, wherein:
The mass percent of each raw material is in the A component:
Naphthalene series high-efficiency water-reducing agent 40～50
Natural zeolite ultrafine powder 50～60
The B component is the sulfamate based water reducer of solid content 33%, and the preparation method of sulfamate based water reducer is as follows:
(2-1) by following mass ratio, the raw material of weighing:
165 parts of Sodium sulfanilates
95 parts of phenol
15 parts in sodium hydroxide
15 parts in urea
3 parts of trolamines
190 parts in formaldehyde
500 parts in water
(2-2) Sodium sulfanilate, phenol, sodium hydroxide, trolamine and the water with above-mentioned weighing drops in the reactor, and stir on the limit, the limit is heated to 85～90 ℃, and the formaldehyde with weighing slowly adds in the reactor then, adds in 1-1.5 hour; Again the urea of weighing is dropped in the reactor, continuously stirring, be heated to 90～95 ℃, react discharging after 8-8.5 hour.
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| CN 201010591819 CN102126846B (en) | 2010-12-08 | 2010-12-08 | Manufacturing method for high pumping concrete |
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|---|---|---|---|
| CN 201010591819 CN102126846B (en) | 2010-12-08 | 2010-12-08 | Manufacturing method for high pumping concrete |
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| CN102126846B CN102126846B (en) | 2013-01-30 |
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102515646A (en) * | 2011-12-15 | 2012-06-27 | 中建三局建设工程股份有限公司 | Antifreeze anticorrosion durable concrete and preparation method thereof |
| CN103183486A (en) * | 2013-03-01 | 2013-07-03 | 王中 | Amino-sulfonic acid and naphthalene compound water reducing agent and preparation method thereof |
| CN104196241A (en) * | 2014-08-25 | 2014-12-10 | 延安大学 | Construction method for pumping concrete |
| CN104446225A (en) * | 2014-12-23 | 2015-03-25 | 华汇建设集团有限公司 | Method for producing underground concrete capable of removing side effect of sea sand |
| CN106007529A (en) * | 2016-05-25 | 2016-10-12 | 句容联众科技开发有限公司 | High-performance concrete and preparation method thereof |
| CN110885213A (en) * | 2019-11-28 | 2020-03-17 | 桐乡市亚都混凝土有限公司 | Super high-rise pumping concrete and preparation method thereof |
| CN113336465A (en) * | 2021-06-24 | 2021-09-03 | 山东业安建材有限公司 | CF90 high-strength high-performance steel fiber concrete composite additive and preparation method thereof |
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Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102515646A (en) * | 2011-12-15 | 2012-06-27 | 中建三局建设工程股份有限公司 | Antifreeze anticorrosion durable concrete and preparation method thereof |
| CN102515646B (en) * | 2011-12-15 | 2016-06-29 | 中建三局建设工程股份有限公司 | A kind of antifreeze anticorrosion durable concrete and preparation method thereof |
| CN103183486A (en) * | 2013-03-01 | 2013-07-03 | 王中 | Amino-sulfonic acid and naphthalene compound water reducing agent and preparation method thereof |
| CN104196241A (en) * | 2014-08-25 | 2014-12-10 | 延安大学 | Construction method for pumping concrete |
| CN104446225A (en) * | 2014-12-23 | 2015-03-25 | 华汇建设集团有限公司 | Method for producing underground concrete capable of removing side effect of sea sand |
| CN106007529A (en) * | 2016-05-25 | 2016-10-12 | 句容联众科技开发有限公司 | High-performance concrete and preparation method thereof |
| CN110885213A (en) * | 2019-11-28 | 2020-03-17 | 桐乡市亚都混凝土有限公司 | Super high-rise pumping concrete and preparation method thereof |
| CN113336465A (en) * | 2021-06-24 | 2021-09-03 | 山东业安建材有限公司 | CF90 high-strength high-performance steel fiber concrete composite additive and preparation method thereof |
| CN113336465B (en) * | 2021-06-24 | 2023-12-26 | 山东业安建材有限公司 | CF90 high-strength high-performance steel fiber concrete composite additive and preparation method thereof |
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| CN102126846B (en) | 2013-01-30 |
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Effective date of registration: 20170814 Address after: 100084 room 5, unit 201, East 8, Tsinghua University, Beijing, Haidian District Co-patentee after: Ye Haowen Patentee after: Feng Naiqian Co-patentee after: Ye Haowen Zhongjian science and Technology Co Ltd Address before: 100084 room 5, unit 201, East 8, Tsinghua University, Beijing, Haidian District Co-patentee before: Ye Haowen Patentee before: Feng Naiqian |
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