CN104402363A - Sleeve grouting material for connection of steel bar and preparation method thereof - Google Patents

Sleeve grouting material for connection of steel bar and preparation method thereof Download PDF

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Publication number
CN104402363A
CN104402363A CN201410471040.4A CN201410471040A CN104402363A CN 104402363 A CN104402363 A CN 104402363A CN 201410471040 A CN201410471040 A CN 201410471040A CN 104402363 A CN104402363 A CN 104402363A
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weight
bar
sleeve grouting
parts
cement
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CN104402363B (en
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陈竞
陆绍辉
庞忠华
李东平
区锡祥
杨立中
全昭忠
苏强
肖利英
陈艺玲
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Liuzhou OVM Machinery Co Ltd
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Liuzhou OVM Machinery Co Ltd
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Abstract

A sleeve grouting material for connection of steel bars is prepared by adding 13-14 parts by weight of water into per 100 parts by weight of sleeve grouting material dry powder for connection of steel bars. The dry powder is a mixture comprising the following components by weight: 1350-1450 parts of compound cement prepared by mixing ordinary Portland cement and sulphoaluminate cement, 250-550 parts of quartz powder, 350-500 parts of silica powder, 150-250 parts of micro silica powder, 50-100 parts of light calcium carbonate, 50-150 parts of a compound expansion agent, 20-25 parts of polycarboxylic acid water reducing agent and 2.15-2.30 parts of a modifier; the modifier comprises 0.15-0.2 part of a polyether modified silicone defoaming agent, 0.8-1 part of sodium gluconate, 0.4-0.5 part of zinc oxide and 0.6-0.8 part of lithium carbonate. The grouting material has stable and reliable performance, and the preparation method is simple and scientific.

Description

A kind of bar connecting sleeve grouting material and preparation method thereof
Technical field
The present invention relates to building material field, main a kind of for bar connecting sleeve grouting material and preparation method thereof in assembly concrete component.
Background technology
Publication number is that the patent application technology of CN101921086A discloses a kind of cement-based ultra-high strength contraction-free grouting concrete, this grouting material degree of mobilization, ultimate compression strength are all higher, be applicable to main equipment installation, foot bolt fastening etc., but because containing steel fiber in formula, sleeve pumping grouting cannot be used for;
Publication number is that the patent application technology of CN102992722A discloses a kind of superelevation strong iron tailings sand cement base grouting material and preparation method thereof, its ultimate compression strength can reach 110MPa, but this grouting material with iron tailings sand for aggregate, maximum particle diameter reaches 4.75mm, need to prevent segregation by plasticity-retention agent, bleeding, and be only limitted to Equipment Foundations back-grouting, support groutings etc. do not need the situation of pressure pumping, when bridge prefabrication assembling construction and Highrise buildings etc. need pressure pumping, aggregate size is comparatively large and the grouting material of degree of mobilization >=300mm easily occurs segregation phenomenon, cause the generation of plugging situation, and this grouting material is to Pressure-flow study, segregation situation and bond strength are without related description, these Index Influences can the long-term behaviour of application property and structure to grouting, in bridge structure, under the effect of car load, grouting material bond strength deficiency will cause reinforcing bar to be separated with grouting material under tension and compression stress repeatedly, steel bar connector was lost efficacy, there is structural issue,
Publication number is that the patent application technology of CN103265253A discloses a kind of assembled architecture construction high performance grouting material, there is some deficiency following in this grouting material: is 1. major gelled material with aluminosulfate cement, the development of aluminosulfate cement early strength is fast, but later strength retraction problem can not be ignored; 2. aluminosulfate cement basicity is low, is not enough to form passive film at rebar surface, is unfavorable for the protection to steel bar corrosion, have impact on the long-term behaviour of structure; 3. when the bond strength of this material and pressure pumping, segregation, bleeding situation do not have related description.
Publication number is that the patent application technology of CN103910511A discloses a kind of omnidistance ungauged regions super-high strength steel muscle sleeve connection injection material, publication number is that the patent application technology of CN103922660A discloses the strong injection material of a kind of straight screw sleeve connection ungauged regions superelevation, all there is some deficiency following in above two kinds of grouting materials: 1, quartz sand content is high, and particle diameter is undeclared, under pressure pumping conditions, aggregate size is comparatively large and the grouting material of degree of mobilization >=300mm easily occurs layering, segregation phenomenon, do not meet the regulation of the middle fine aggregate maximum particle diameter of JG/T 408-2013 " bar connecting sleeve grouting material " no more than 2.36mm, 2, described cement is silicate cement, and illustrates without strong, short solidifying component any morning in admixture, and formula disclosed in it does not possess the effect of the 1d intensity >=55MPa reached disclosed in it, 3, described early expansion agent is sulplo-aluminate class swelling agent, and such swelling agent take ettringite as expansion sources, mainly occurs in the middle and later periods, do not possess the effect that early-age plastic expands, and rate of expansion is generally no more than 0.1%, 4, defoamer is polyether-modified silicon defoaming agent or dimethyl silicone oil defoamer, dimethyl silicone oil defoamer described in it is liquid, and polyether-modified silicon defoaming agent proterties is undeclared, does not know solid or liquid, as being liquid, then this formula can be made troubles in engineer applied, 5, its making method or traditional method, by all material by weight mixing, adopts glue sand agitator to stir, construction inconvenience.
Summary of the invention
The object of the present invention is to provide and a kind of there is bar connecting sleeve grouting material of the performance such as high bond strength, high flowability, high early strong, superelevation is strong, microdilatancy, compressive resistance bleeding, anti-segregation and preparation method thereof, the deficiency existed with bar connecting sleeve grouting material after solving prior art.
For solving the problem, the technical solution used in the present invention is: a kind of bar connecting sleeve grouting material, formed by the stirring that adds water at the scene of bar connecting sleeve grouting material dry powder, the mixture that described bar connecting sleeve grouting material dry powder is made up of following component raw material, in mixture, each component concentration with parts by weight calculating is:
Composite cement 1350 ~ 1450 weight part, described composite cement is by ordinary Portland cement 1150 ~ 1300 parts and aluminosulfate cement 100 ~ 300 parts of mixtures mixed;
Silica powder 250 ~ 550 weight part,
Silicon powder 350 ~ 500 weight part, SILICA FUME 150 ~ 250 weight part,
Light calcium carbonate 50 ~ 100 weight part, composite expanding agent: 50 ~ 150 weight parts,
Polycarboxylate water-reducer 20 ~ 25 weight part, properties-correcting agent 2.15 ~ 2.30 weight part;
Described properties-correcting agent comprises: polyether-modified silicon defoaming agent 0.15 ~ 0.2 weight part, Sunmorl N 60S 0.8 ~ 1.0 weight part, zinc oxide 0.4 ~ 0.5 weight part, Quilonum Retard 0.6 ~ 0.8 weight part;
The ratio of bar connecting sleeve grouting material dry powder and water with parts by weight calculating is:
Bar connecting sleeve grouting material dry powder 100 weight part,
Water 13 ~14 weight parts.
It is further: described composite strength of cement grade is not less than 42.5; Wherein, the strength of cement grade of ordinary Portland cement is not less than 42.5#, and the strength of cement grade of aluminosulfate cement is not less than 42.5#; The strength of cement grade of preferred ordinary Portland cement is 52.5#.
The granularity of described silica powder is 200 ~ 500 orders, dioxide-containing silica >=99.5%.
The granularity of described silicon powder is 800 ~ 1500 orders, dioxide-containing silica >=99.5%.
Described SILICA FUME is encryption SILICA FUME, its tap density >=600kg/m3, reactive silica silicone content >=92%.
Described light calcium carbonate is its granularity is 325 ~ 800 orders, the white powder material of calcium carbonate content >=98%.
Described composite expanding agent is the grey powder material be mixed with the Cellmic C 121 of the HEA anti-cracking waterproof swelling agent of 99.9% ~ 99.97% weight part and 0.03% ~ 0.1% weight part.
Described polycarboxylate water-reducer is the cream powder material of water-reducing rate >=25%.
Described polyether-modified silicon defoaming agent is white powder material.
Another relevant technical scheme is: a kind of preparation method of bar connecting sleeve grouting material, the method first produces bar connecting sleeve grouting material dry powder, the stirring that added water at the scene by bar connecting sleeve grouting material dry powder again forms bar connecting sleeve grouting material, and its concrete steps are:
A, precast reinforced sleeve for connection grouting material dry powder:
A1: get the raw materials ready: each component raw material preparing " bar connecting sleeve grouting material dry powder " by following requirement and ratio:
The composite cement that aluminosulfate cement 100 ~ 300 parts that the ordinary Portland cement 1150 ~ 1300 parts of 42.5# and strength of cement grade be not less than 42.5# is mixed is not less than: 1350 ~ 1450 weight parts by strength of cement grade;
Granularity is 200 ~ 500 orders, the quartzy powder of dioxide-containing silica >=99.5%: 250 ~ 550 weight parts;
Granularity is the silicon powder of 800 ~ 1500 orders, dioxide-containing silica >=99.5%: 350 ~ 500 weight parts;
Tap density >=600kg/m3, the SILICA FUME of reactive silica silicone content >=92%: 150 ~ 250 weight parts;
Granularity is the light calcium carbonate of 325 ~ 800 orders, calcium carbonate content >=98%: 50 ~ 100 weight parts;
Composite expanding agent so that the Cellmic C 121 of the HEA anti-cracking waterproof swelling agent of 99.9% ~ 99.97% weight part and 0.03% ~ 0.1% weight part is mixed: 50 ~ 150 weight parts;
Properties-correcting agent: 2.15 ~ 2.30 weight parts:
Described properties-correcting agent comprises: polyether-modified silicon defoaming agent 0.15 ~ 0.2 weight part, Sunmorl N 60S 0.8 ~ 1.0 weight part, zinc oxide 0.4 ~ 0.5 weight part, Quilonum Retard 0.6 ~ 0.8 weight part;
A2: mixing: first by the properties-correcting agent in said components material, polycarboxylate water-reducer with pony mixer stir 2 ~ 3 minutes, then the mixture of properties-correcting agent, polycarboxylate water-reducer and all the other each component materials are dropped into together plough coulter type stirrer for mixing stir 30 ~ 40min make bar connecting sleeve grouting material dry powder;
A3: packaging: by above-mentioned bar connecting sleeve grouting material dry powder by every bag of net weight 25kg or 50kg weight packaging;
B, add water and make bar connecting sleeve grouting material:
On-the-spot in use, be: the ratio of 100:13-14 adds water, with stirrer mix and blend 3 ~ 5 minutes, namely make the bar connecting sleeve grouting material that can be used for sleeve and be in the milk with parts by weight calculating in the ratio of bar connecting sleeve grouting material dry powder and water.
Owing to taking above technical scheme, a kind of bar connecting sleeve grouting material of the present invention and preparation method thereof has following characteristics and beneficial effect:
1. the present invention's it " bar connecting sleeve grouting material " is by gelling material (the composite cement that ordinary Portland cement and aluminosulfate cement mix), mineral admixture (silica powder, silicon powder, SILICA FUME and light calcium carbonate) and composite expanding agent, polycarboxylate water-reducer and properties-correcting agent composition, by the optimization to mineral admixture kind and grating, reach when do not use prior art all to adopt with fine aggregate (particle diameter 0.1 ~ 4.75mm) for main raw material, the effect of degree of mobilization >=330mm can be obtained, and owing to not using aggregate, relative to prior art, dry powder specific surface area is large, compact structure after solidification, increase grouting material to the chemical bond power of reinforcing bar and friction resistance, higher ultimate compression strength improves mechanical snap power, the present invention is made to obtain high bond strength.
2. the present invention's it " bar connecting sleeve grouting material " is major gelled material with ordinary Portland cement; be aided with a small amount of aluminosulfate cement and auxiliary agent; under the condition obtaining 1d intensity >=50MPa; also obtain the higher slurries of basicity; form passive film at rebar surface, corrosion provide protection is played to reinforcing bar.
3. it " bar connecting sleeve grouting material " performance of the present invention is good, meet JG/T 408-2013 " bar connecting sleeve grouting material " standard regulation completely, its early strength is not less than prior art, later strength is far above prior art, 1d intensity >=50Mpa, 3d intensity >=80Mpa, 28d intensity >=130Mpa, 56d intensity >=28d intensity, go out machine degree of mobilization >=330mm, 30min degree of mobilization >=280mm, microdilatancy, to Φ 20 Ribbed Bar bond strength >=25 Mpa, and because not containing sand and low water-cement ratio, segregation is there will not be under the pumping of 4Mpa pressure, demixing phenomenon, its experiment facility and relevant criterion are: stirrer: adopt JC/T 681-2005 " planetary cement mortar mixer ", degree of mobilization: according to GB/T 2419-2005 " Test method for fluidity of cement mortar ", ultimate compression strength: according to GB/T 17671-1999 " Test method for strength of hydraulic cement mortar (ISO method) ", bond strength: according to DL/T 5150-2001 " concrete for hydraulic structure testing regulation " (see subordinate list three).
4. it " bar connecting sleeve grouting material " of the present invention adopts and produces bar connecting sleeve grouting material dry powder in advance, during use, add water at the scene and stir and the perfusion of form slurry mud jacking, because bar connecting sleeve grouting material dry powder can with machine in advance in plant produced, therefore each component mixes, ensure the quality, stable and reliable for performance of " bar connecting sleeve grouting material ", the simple science of its making method.
Below, the technical characteristic of a kind of bar connecting sleeve grouting material of the present invention and preparation method thereof is further described in conjunction with the embodiments.
Embodiment
Embodiment one:
A kind of bar connecting sleeve grouting material, formed by the stirring that adds water at the scene of bar connecting sleeve grouting material dry powder, the mixture that described bar connecting sleeve grouting material dry powder is made up of following component raw material, in mixture, each component concentration with parts by weight calculating is:
Composite cement 1350 weight part is by ordinary Portland cement 1100 weight part and aluminosulfate cement 300 parts of mixtures mixed;
Silica powder 550 weight part,
Silicon powder 400 weight part, SILICA FUME 150 weight part,
Light calcium carbonate 100 weight part, composite expanding agent: 50 weight parts,
Polycarboxylate water-reducer 20 weight part,
Properties-correcting agent 2.15 weight part;
Wherein: polyether-modified silicon defoaming agent 0.15 weight part, Sunmorl N 60S 0.9 weight part, zinc oxide 0.4 weight part, Quilonum Retard 0.6 weight part;
Described composite strength of cement grade is not less than 42.5; Wherein, the strength of cement grade of ordinary Portland cement is not less than 42.5#, and the strength of cement grade of the preferred ordinary Portland cement of the present embodiment is 52.5#, and the strength of cement grade of aluminosulfate cement is not less than 42.5#;
The granularity of described silica powder is 200 ~ 500 orders, dioxide-containing silica >=99.5%.
The granularity of described silicon powder is 800 ~ 1500 orders, dioxide-containing silica >=99.5%.
Described SILICA FUME is encryption SILICA FUME, in mazarine or black-and-blue particle, and its tap density >=600kg/m3, reactive silica silicone content >=92%.
Described light calcium carbonate is its granularity is 325 ~ 800 orders, the white powder material of calcium carbonate content >=98%.
Described composite expanding agent is mixed with the Cellmic C 121 of the HEA anti-cracking waterproof swelling agent of 99.9% ~ 99.97% weight part and 0.03% ~ 0.1% weight part, Cellmic C 121 discharges nitrogen under the effect of alkaline environment and hydration heat of cement, make grouting material can produce expansion in the plastic stage, by the HEA swelling agent of calcium sulphoaluminate base, ettringite is generated in the middle and later periods, fill up the micropore of plastic stage generation, make grouting material reach rate of expansion index, and intensity can not be reduced because of pore.
Described polycarboxylate water-reducer is the cream powder material of water-reducing rate >=25%.
Described polyether-modified silicon defoaming agent is white powder material.
When being mixed with bar connecting sleeve grouting material at the scene, the ratio of bar connecting sleeve grouting material dry powder and water with parts by weight calculating is: bar connecting sleeve grouting material dry powder 100 weight part, water 13 ~ 14 weight part.
The making method of above-mentioned bar connecting sleeve grouting material is: first precast reinforced sleeve for connection grouting material dry powder, and the stirring that then added water at the scene by bar connecting sleeve grouting material dry powder forms bar connecting sleeve grouting material, and its concrete steps are:
A, precast reinforced sleeve for connection grouting material dry powder:
A1, to get the raw materials ready: each component raw material preparing " bar connecting sleeve grouting material dry powder " by following requirement and ratio:
By strength of cement grade to be ordinary Portland cement 1150 weight part of 52.5# and strength of cement grade be 42.5 aluminosulfate cement 200 weight part be mixed and made into composite cement 1350 weight part;
Granularity is 200 ~ 500 orders, the quartzy powder of dioxide-containing silica >=99.5%: 550 weight parts;
Granularity is the silicon powder of 800 ~ 1500 orders, dioxide-containing silica >=99.5%: 400 weight parts;
Tap density >=600kg/m3, the SILICA FUME of reactive silica silicone content >=92%: 150 weight parts;
Granularity is the light calcium carbonate of 325 ~ 800 orders, calcium carbonate content >=98%: 100 weight parts;
Composite expanding agent: 50 weight parts;
The polycarboxylate water-reducer of water-reducing rate >=25%: 20 weight parts;
By polyether-modified silicon defoaming agent, Sunmorl N 60S, zinc oxide, the properties-correcting agent that Quilonum Retard is mixed: 2.15 weight parts;
Wherein: polyether-modified silicon defoaming agent 0.15 weight part, Sunmorl N 60S 0.9 weight part, zinc oxide 0.4 weight part, Quilonum Retard 0.6 weight part;
A2, mixing: first by the properties-correcting agent in said components material, polycarboxylate water-reducer with pony mixer stir 2 ~ 3 minutes, then the mixture of properties-correcting agent, polycarboxylate water-reducer and all the other each component materials are dropped into together plough coulter type stirrer for mixing stir 30 ~ 40min make bar connecting sleeve grouting material dry powder;
A3, packaging: by above-mentioned bar connecting sleeve grouting material dry powder by every bag of net weight 25kg or 50kg weight packaging;
B, add water and make bar connecting sleeve grouting material:
On-the-spot in use, in the ratio of bar connecting sleeve grouting material dry powder and water with parts by weight calculating be: 100: 14ratio add water, with stirrer mix and blend 3 ~ 5 minutes, namely make the bar connecting sleeve grouting material that can be used for sleeve grouting.
Embodiment two ~ embodiment five is one conversion of the embodiment of the present invention one, in its composition bar connecting sleeve grouting material dry powder, the quality requirements of each component is the same with embodiment one, each amounts of components, compared with embodiment one, can also increase or reduce, and the span of general each component is:
Composite cement 1350 ~ 1450 weight part, described composite cement is by ordinary Portland cement 1150 ~ 1300 parts and aluminosulfate cement 100 ~ 300 parts of mixtures mixed;
Silica powder 250 ~ 450 weight part,
Silicon powder 350 ~ 500 weight part, SILICA FUME 150 ~ 250 weight part,
Light calcium carbonate 50 ~ 100 weight part, composite expanding agent: 100 ~ 150 weight parts,
Polycarboxylate water-reducer 20 ~ 25 weight part, properties-correcting agent 2.15 ~ 2.30 weight part;
Described properties-correcting agent comprises: polyether-modified silicon defoaming agent 0.15 ~ 0.2 weight part, Sunmorl N 60S 0.8 ~ 1.0 weight part, zinc oxide 0.4 ~ 0.5 weight part, Quilonum Retard 0.6 ~ 0.8 weight part.
In each embodiment, the concrete consumption of each component is see subordinate list one: the consumption table look-up of each component " in the embodiment one ~ embodiment five in bar connecting sleeve grouting material dry powder "
The bar connecting of the embodiment of the present invention two ~ embodiment five by the preparation method of sleeve grouting material with embodiment one, only due to component ratio difference each in each embodiment (see subordinate list one, subordinate list two), the Technique performance parameter difference (see subordinate list three: bar connecting sleeve grouting material the performance test results of the present invention and JG/T 408-2013 bar connecting sleeve grouting material performance criteria value contrast table look-up) of " the bar connecting sleeve grouting material " produced.
In the present invention's " bar connecting sleeve grouting material dry powder ", each amounts of components is also not limited only to the data that subordinate list one is listed, as long as in the scope that specification sheets of the present invention or claims are recorded.
As another conversion of various embodiments of the present invention, at B, add water and make bar connecting sleeve grouting material operation, the ratio of bar connecting sleeve grouting material dry powder and water can also change, generally, the ratio of bar connecting sleeve grouting material dry powder and water with parts by weight calculating is: bar connecting sleeve grouting material dry powder 100 weight part: water 13 ~ 14 weight part.

Claims (10)

1. a bar connecting sleeve grouting material, it is characterized in that: this bar connecting sleeve grouting material is formed by the stirring that adds water at the scene of bar connecting sleeve grouting material dry powder, the mixture that described bar connecting sleeve grouting material dry powder is made up of following component raw material, in mixture, each component concentration with parts by weight calculating is:
Composite cement 1350 ~ 1450 weight part, described composite cement is by ordinary Portland cement 1150 ~ 1300 parts and aluminosulfate cement 100 ~ 300 parts of mixtures mixed;
Silica powder 250 ~ 550 weight part,
Silicon powder 350 ~ 500 weight part, SILICA FUME 150 ~ 250 weight part,
Light calcium carbonate 50 ~ 100 weight part, composite expanding agent: 50 ~ 150 weight parts,
Polycarboxylate water-reducer 20 ~ 25 weight part, properties-correcting agent 2.15 ~ 2.30 weight part;
Described properties-correcting agent comprises: polyether-modified silicon defoaming agent 0.15 ~ 0.2 weight part, Sunmorl N 60S 0.8 ~ 1.0 weight part, zinc oxide 0.4 ~ 0.5 weight part, Quilonum Retard 0.6 ~ 0.8 weight part;
The ratio of bar connecting sleeve grouting material dry powder and water with parts by weight calculating is:
Bar connecting sleeve grouting material dry powder 100 weight part,
Water 13 ~14 weight parts.
2. a kind of bar connecting sleeve grouting material according to claim 1, is characterized in that: described composite strength of cement grade is not less than 42.5; Wherein, the strength of cement grade of ordinary Portland cement is not less than 42.5#, and the strength of cement grade of aluminosulfate cement is not less than 42.5#; The strength of cement grade of preferred ordinary Portland cement is 52.5#.
3. a kind of bar connecting sleeve grouting material according to claim 1, is characterized in that: the granularity of described silica powder is 200 ~ 500 orders, dioxide-containing silica >=99.5%.
4. a kind of bar connecting sleeve grouting material according to claim 1, is characterized in that: the granularity of described silicon powder is 800 ~ 1500 orders, dioxide-containing silica >=99.5%.
5. a kind of bar connecting sleeve grouting material according to claim 1, is characterized in that: described SILICA FUME is encryption SILICA FUME, its tap density >=600kg/m3, reactive silica silicone content >=92%.
6. a kind of bar connecting sleeve grouting material according to claim 1, is characterized in that: described light calcium carbonate is its granularity is 325 ~ 800 orders, the white powder material of calcium carbonate content >=98%.
7. a kind of bar connecting sleeve grouting material according to claim 1, is characterized in that: described composite expanding agent is the grey powder material be mixed with the Cellmic C 121 of the HEA anti-cracking waterproof swelling agent of 99.9% ~ 99.97% weight part and 0.03% ~ 0.1% weight part.
8. a kind of bar connecting sleeve grouting material according to claim 1 is characterized in that: described polycarboxylate water-reducer is the cream powder material of water-reducing rate >=25%.
9. a kind of bar connecting sleeve grouting material according to claim 1, is characterized in that: described polyether-modified silicon defoaming agent is white powder material.
10. the preparation method of a kind of bar connecting sleeve grouting material as claimed in claim 1, it is characterized in that, the method first produces bar connecting sleeve grouting material dry powder, the stirring that added water at the scene by bar connecting sleeve grouting material dry powder again forms bar connecting sleeve grouting material, and its concrete steps are:
A, precast reinforced sleeve for connection grouting material dry powder:
A1: get the raw materials ready: each component raw material preparing " bar connecting sleeve grouting material dry powder " by following requirement and ratio:
The composite cement that aluminosulfate cement 100 ~ 300 parts that the ordinary Portland cement 1150 ~ 1300 parts of 42.5# and strength of cement grade be not less than 42.5# is mixed is not less than: 1350 ~ 1450 weight parts by strength of cement grade;
Granularity is 200 ~ 500 orders, the quartzy powder of dioxide-containing silica >=99.5%: 250 ~ 550 weight parts;
Granularity is the silicon powder of 800 ~ 1500 orders, dioxide-containing silica >=99.5%: 350 ~ 500 weight parts;
Tap density >=600kg/m3, the SILICA FUME of reactive silica silicone content >=92%: 150 ~ 250 weight parts;
Granularity is the light calcium carbonate of 325 ~ 800 orders, calcium carbonate content >=98%: 50 ~ 100 weight parts;
Composite expanding agent so that the Cellmic C 121 of the HEA anti-cracking waterproof swelling agent of 99.9% ~ 99.97% weight part and 0.03% ~ 0.1% weight part is mixed: 50 ~ 150 weight parts;
Properties-correcting agent: 2.15 ~ 2.30 weight parts;
Described properties-correcting agent comprises: polyether-modified silicon defoaming agent 0.15 ~ 0.2 weight part, Sunmorl N 60S 0.8 ~ 1.0 weight part, zinc oxide 0.4 ~ 0.5 weight part, Quilonum Retard 0.6 ~ 0.8 weight part;
A2: mixing: first by the properties-correcting agent in said components material, polycarboxylate water-reducer with pony mixer stir 2 ~ 3 minutes, then the mixture of properties-correcting agent, polycarboxylate water-reducer and all the other each component materials are dropped into together plough coulter type stirrer for mixing stir 30 ~ 40min make bar connecting sleeve grouting material dry powder;
A3: packaging: by above-mentioned bar connecting sleeve grouting material dry powder by every bag of net weight 25kg or 50kg weight packaging;
B, add water and make bar connecting sleeve grouting material:
On-the-spot in use, be: the ratio of 100:13-14 adds water, with stirrer mix and blend 3 ~ 5 minutes, namely make the bar connecting sleeve grouting material that can be used for sleeve and be in the milk with parts by weight calculating in the ratio of bar connecting sleeve grouting material dry powder and water.
CN201410471040.4A 2014-09-16 2014-09-16 A kind of bar connecting sleeve grouting material and preparation method thereof Active CN104402363B (en)

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CN105693173A (en) * 2016-02-03 2016-06-22 合肥工业大学 Sleeve grouting material for prefabricated buildings
CN106186899A (en) * 2016-06-20 2016-12-07 河北达奥达建材科技股份有限公司 A kind of prefabricated concrete structure bar connecting sleeve grouting material
CN106699077A (en) * 2016-12-19 2017-05-24 重庆市建筑科学研究院 Sleeve grouting material for assembly type building steel bar connection
CN107082614A (en) * 2017-04-26 2017-08-22 科之杰新材料集团有限公司 A kind of sleeve grouting dry powder composite of bar connecting and preparation method thereof
CN107572978A (en) * 2017-09-27 2018-01-12 中建材中岩科技有限公司 Bar connecting sleeve grouting material and preparation method thereof
CN108069649A (en) * 2016-11-09 2018-05-25 无锡市江淮建材科技有限公司 A kind of compounding of rapid hardening cement fondu material and preparation method thereof
CN108929084A (en) * 2018-08-03 2018-12-04 上海住信住宅工业有限公司 Reinforcing bar sleeve for connection grouting material
CN110642579A (en) * 2019-11-14 2020-01-03 广西云燕特种水泥建材有限公司 Marine sulphoaluminate cement for rapid construction and preparation method thereof

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CN102267809A (en) * 2010-06-02 2011-12-07 中冶建筑研究总院有限公司 High strength cement mortar for connecting steel bars, and preparation method thereof
CN103922660A (en) * 2014-03-13 2014-07-16 东南大学 Shrinkage-free ultrahigh-strength grouting material for connection of steel bar sleeves
CN104003681A (en) * 2014-06-03 2014-08-27 中交上海三航科学研究院有限公司 Offshore wind power duct rack grouting material and construction method thereof

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CN105693173A (en) * 2016-02-03 2016-06-22 合肥工业大学 Sleeve grouting material for prefabricated buildings
CN105693173B (en) * 2016-02-03 2017-12-26 合肥工业大学 A kind of sleeve grouting material for assembled architecture
CN106186899A (en) * 2016-06-20 2016-12-07 河北达奥达建材科技股份有限公司 A kind of prefabricated concrete structure bar connecting sleeve grouting material
CN108069649A (en) * 2016-11-09 2018-05-25 无锡市江淮建材科技有限公司 A kind of compounding of rapid hardening cement fondu material and preparation method thereof
CN106699077A (en) * 2016-12-19 2017-05-24 重庆市建筑科学研究院 Sleeve grouting material for assembly type building steel bar connection
CN106699077B (en) * 2016-12-19 2018-10-02 重庆市建筑科学研究院 A kind of assembled architecture bar connecting sleeve grouting material
CN107082614A (en) * 2017-04-26 2017-08-22 科之杰新材料集团有限公司 A kind of sleeve grouting dry powder composite of bar connecting and preparation method thereof
CN107572978A (en) * 2017-09-27 2018-01-12 中建材中岩科技有限公司 Bar connecting sleeve grouting material and preparation method thereof
CN108929084A (en) * 2018-08-03 2018-12-04 上海住信住宅工业有限公司 Reinforcing bar sleeve for connection grouting material
CN110642579A (en) * 2019-11-14 2020-01-03 广西云燕特种水泥建材有限公司 Marine sulphoaluminate cement for rapid construction and preparation method thereof

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