CN104556768B - Preparation method of low-shrinkage concrete hollow wall partition board - Google Patents
Preparation method of low-shrinkage concrete hollow wall partition board Download PDFInfo
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- CN104556768B CN104556768B CN201510045706.4A CN201510045706A CN104556768B CN 104556768 B CN104556768 B CN 104556768B CN 201510045706 A CN201510045706 A CN 201510045706A CN 104556768 B CN104556768 B CN 104556768B
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Abstract
The invention relates to a preparation method of a low-shrinkage concrete hollow wall partition board. The method comprises the steps: adding a shrinkage reducing agent in a preparation process of concrete of the hollow wall partition board; respectively performing low-temperature steam curing and high-temperature steam curing before and after demoulding of the formed concrete hollow wall partition board; performing spraying maintenance by utilizing a shrinkage reducing agent solution after steam curing is completed; performing carbonization treatment after the concrete hollow wall partition board is dried so that internal shrinkage stress of the concrete of a hardening wall board is reduced by reducing concrete microscopic pore solution surface tension of the concrete hollow wall partition board and improving a concrete microscopic pore structure, and the preparation of the low-shrinkage concrete hollow wall partition board is realized. By using the concrete hollow wall partition board prepared by using the preparation method, the drying shrinkage is reduced to 0.1-0.4 mm/m; meanwhile, the carbonization shrinkage of the concrete hollow wall partition board is carried out in advance, so that the crevice occurrence probability of an assembled wall body of the concrete hollow wall partition board is reduced, the quality and the competitiveness of a wall board product are greatly improved, and carbon emission can also be directly reduced by curing carbon dioxide.
Description
Technical field
The invention belongs to the technical field of construction material is and in particular to a kind of preparation of lower shrinkage concrete hollow partition plate
Method.
Background technology
The alternative traditional brick of concrete light hollow partition board is applied and is used as filling wall in frame-shear structure, and it has
Lightweight, economy, energy-conservation, fire prevention, quick for installation, good integrity, raw material sources multiple advantages such as extensively, are just becoming market favor
Building material product.
How existing concrete light hollow partition plate is with cement, building waste, industrial residue, light ceramic, expanded pearlite
Rock etc. is raw material.Due to lacking the coarse aggregate having obvious restriction effect to concrete drying shrinkage, generally existing concrete is empty
The big problem of septum cordis wallboard dry shrinkage.The body of wall of concrete hollow partition plate assembling is often in use for some time (generally
For 1-2), the junction between concrete hollow partition plate and wallboard and between body of wall and structures is easy for be occurred splitting
Seam.This quality problems this greatly obstructed the popularization and application on a large scale of this materials for wall having many advantages, such as.
Content of the invention
A kind of in view of above-mentioned technical disadvantages, it is an object of the invention to provide preparation of lower shrinkage concrete hollow partition plate
Method, for reducing the drying shrinkage value of concrete hollow partition plate, reduces or thorough solution existing concrete hollow partition board
The wall body slit problem leading to greatly because of drying shrinkage value.
For achieving the above object, the present invention mainly mixes economization agent using in the concrete preparation of hollow partition board, mixed
Carry out spraying maintenance using reducing agent solution during solidifying soil hollow partition board maintenance, and carry out after concrete hollow partition plate is dried
Carbonization treatment, passes through respectively to reduce concrete hollow partition board concrete microcosmic hole solution surface tension and improves R.C. wall board
Microporous structure reducing the shrinkage stress of maturing hollow batardeau intralaminar part, thus reducing concrete hollow partition plate
Drying shrinkage value.
Concrete scheme of the present invention is achieved in that a kind of preparation method of lower shrinkage concrete hollow partition plate, including
R.C. wall board batch mixing, stirring molding, low temperature are steam-cured, and the cutting demoulding, lifting are stacked, high-temperature steam curing, and economization agent solution spraying is supported
Shield, is dried, the operation such as carbon dioxide carbonized maintaining；
It is characterized in that: hollow partition board concrete preparation when mix economization agent, in type concrete hollow every
Wallboard carries out before and after carrying out the demoulding that low temperature is steam-cured and high-temperature steam curing respectively, utilizes economization agent in concrete hollow partition plate maintenance
Solution carries out spraying maintenance；And concrete hollow partition plate be dried after carry out carbonization treatment, by reduce concrete hollow every
R.C. wall board microcosmic hole solution surface tension and improve R.C. wall board microporous structure come to reduce maturing hollow every
Shrinkage stress within wallboard, thus reduce the drying shrinkage value of concrete hollow partition plate.
Preparation method according to lower shrinkage concrete hollow partition plate of the present invention it is characterised in that: hollow every
During the concrete preparation of wallboard, mix the economization agent accounting for binder total amount 0.1wt%-10wt% in concrete.
Preparation method according to lower shrinkage concrete hollow partition plate of the present invention it is characterised in that: concrete is empty
After core-wall sheet metal forming completes 1h-3h, low-temperature steam maintenance operating is directly carried out on the fetal membrane of molding, with the speed liter of 1-2 DEG C/min
Temperature, to 50 ± 10 DEG C and constant temperature 2-3h, is down to cutting, the demoulding after room temperature；Lifting is steam-cured again, with the speed of 1-5 DEG C/min after concentrating
Rate is warming up to 85 ± 10 DEG C and constant temperature 3-5h, and the early stage carrying out before and after the demoulding is steam-cured to be advantageously reduced in concrete to dry shrinkage
The maximum microcosmic hole of value contribution, thus reduce drying shrinkage stress and the drying shrinkage value of wallboard.
Preparation method according to lower shrinkage concrete hollow partition plate of the present invention it is characterised in that: concrete is empty
Core-wall plate completes steam-cured and after being down to room temperature, and the agent solution that reduces using 1wt%-30wt% concentration carries out 1-10 spray and supports
Shield, every time spray maintenance interval time is 0.5-10 days it is ensured that concrete hollow partition plate fully absorbs and reduces agent solution.
Preparation method according to lower shrinkage concrete hollow partition plate of the present invention it is characterised in that: economization agent is
Surfactant, economization agent is alcohols economization agent (as propylene glycol, 2,2'-ethylenedioxybis(ethanol) .) and polyalcohols economization agent, ethers economization agent (such as two
Glycol tertiary butyl ether) and polyethers economization agent, economization agent can reduce the microcosmic hole solution surface tension of concrete thus reducing wall
Dry shrinkage stress within board concrete.
Preparation method according to lower shrinkage concrete hollow partition plate of the present invention it is characterised in that: in economization agent
After the completion of solution maintenance, concrete hollow partition plate is dried with process and is less than 10% to moisture content, then in carbon dioxide body
Fraction is more than 0.5%, and relative humidity is less than maintenance wallboard 0.5-28 days, dioxy under the air of 80%rh or pure carbon dioxide gas
Change carbon and can generate Calcium Carbonate with the calcium hydroxide reaction in R.C. wall board, so that Carbonization contract is occurred in advance, and wallboard can be improved
Concrete microporous structure, thus reduce shrinkage stress and the drying shrinkage value of wallboard.
Preparation method according to lower shrinkage concrete hollow partition plate of the present invention it is characterised in that: using we
The drying shrinkage value of the concrete hollow partition plate that method is made can be reduced to 0.1-0.4mm/m.
Preparation method according to lower shrinkage concrete hollow partition plate of the present invention it is characterised in that: this method is fitted
For reducing the dry shrinkage of the concrete hollow partition plate with Portland cement as major gelled material, concrete hollow partition
Other raw materials of plate can be selected for haydite, pottery sand, expanded perlite, expand oil shale, building waste, industrial residue.
This programme also has other technologies scheme, such as: be employed alone in concrete raw material mixing economization agent, before and after the demoulding
Wallboard low temperature and high-temperature steam curing, economization agent solution spraying maintenance, four kinds of tools of carbonization wallboard under the atmosphere of certain gas concentration lwevel
Any one or more in body reduced measure；It is passed through the carbonated air or pure two of high pressure in closed pressure vessel
Carbon oxide gas carry out high pressure carbonization maintenance to wallboard；Pass through the measure such as spray, submergence using soluble carbonate salt solution to wall
Plate carries out carbonization treatment etc..
The effect that technical solutions according to the invention are realized is: the drying shrinkage value of concrete hollow partition panel products is
0.1-0.4mm/m.This concrete hollow partition panel products can reach far below GB (gbt 23451-2009, lightweight for building
Partition wall batten) requirement to wallboard drying shrinkage value 0.6mm/m, advantageously reduce the crack probability of happening that wallboard assembles body of wall,
Quality and the competitiveness of concrete hollow partition panel products are substantially improved, simultaneously can also be by the reaction with calcium hydroxide in cement
Solidified carbon dioxide directly reduces carbon emission.
Brief description
Fig. 1 is the technological process of the preparation method of lower shrinkage concrete hollow partition plate described in this programme.
Specific embodiment
Below in conjunction with accompanying drawing, the technical scheme in the embodiment of the present invention is clearly and completely described it is clear that being retouched
The embodiment stated is only a part of embodiment of the present invention, rather than whole embodiments.Based on the embodiment in the present invention, this
The every other embodiment that field those of ordinary skill is obtained under the premise of not making creative work, broadly falls into the present invention
The scope of protection.
A kind of embodiment 1: preparation method of lower shrinkage concrete hollow partition plate；Preparing the concrete of hollow partition board
Middle economization agent adopts propylene glycol, and volume is the 1wt% of gel material content.
After concrete hollow partition plate completes molding 3h at normal temperatures, Low Temperature Steam is directly carried out on the fetal membrane of molding and supports
Shield, with the ramp of 1 DEG C/min to 40 DEG C and constant temperature 3h, is down to cutting, the demoulding after room temperature；Lifting is steam-cured again after concentrating,
With the ramp of 2 DEG C/min to 75 DEG C, constant temperature 5h.
Steam-cured complete and be down to room temperature after, the maintenance of 10 sprays is carried out using the propylene glycol solution of 1wt% concentration, sprays every time
Drench interval time for 2 days.
After the completion of spray maintenance, concrete hollow partition plate is dried with process and is less than 10% to moisture content；Dried
Concrete hollow partition plate is 1% in carbon dioxide volume fraction, and relative humidity is less than maintenance 28 days in the dry air of 80%rh.
The concrete hollow partition plate drying shrinkage value that preparation method described in the present embodiment is obtained is about 0.4mm/m.
Embodiment 2: a kind of preparation method of lower shrinkage concrete hollow partition plate, preparing the concrete of hollow partition board
Middle economization agent adopts 2,2'-ethylenedioxybis(ethanol)., and volume is the 3wt% of gel material content.
After concrete hollow partition plate completes molding 2h at normal temperatures, Low Temperature Steam is directly carried out on the fetal membrane of molding and supports
Shield, with the ramp of 1 DEG C/min to 50 DEG C and constant temperature 3h, is down to cutting, the demoulding after room temperature；Lifting is steam-cured again after concentrating,
With the ramp of 2 DEG C/min to 85 DEG C and constant temperature 4h.
Concrete hollow partition plate steam-cured complete and be down to room temperature after, the triethylene glycol. solution using 5wt% concentration carries out 7
Secondary spray maintenance, sprays interval time every time for 3 days.
After the completion of spray maintenance, concrete hollow partition plate is dried with process and is less than 9% to moisture content；Dried
Concrete hollow partition plate is 30% in carbon dioxide volume fraction, and relative humidity is less than maintenance 14 in the dry air of 70%rh
My god.
The concrete hollow partition plate drying shrinkage value that preparation method described in the present embodiment is obtained is about 0.3mm/m.
Embodiment 3: a kind of preparation method of lower shrinkage concrete hollow partition plate, preparing the concrete of hollow partition board
Middle economization agent adopts 2,2'-ethylenedioxybis(ethanol)., and volume is the 5wt% of gel material content.
After concrete hollow partition plate completes molding 1h at normal temperatures, Low Temperature Steam is directly carried out on the fetal membrane of molding and supports
Shield, with the ramp of 2 DEG C/min to 55 DEG C and constant temperature 2h, is down to cutting, the demoulding after room temperature；Lifting is steam-cured again after concentrating,
With the ramp of 3 DEG C/min to 90 DEG C and constant temperature 4h.
Concrete hollow partition plate steam-cured complete and be down to room temperature after, the triethylene glycol. solution using 15wt% concentration carries out 4
Secondary spray maintenance, sprays interval time every time for 5 days；
After the completion of spray maintenance, concrete hollow partition plate is dried with process and is less than 8% to moisture content；Dried
Concrete hollow partition plate is 50% in carbon dioxide volume fraction, and relative humidity is less than maintenance 7 days in 60%rh dry air.
The concrete hollow partition plate drying shrinkage value that preparation method described in the present embodiment is obtained is about 0.2mm/m.
Embodiment 4: a kind of preparation method of lower shrinkage concrete hollow partition plate, preparing the concrete of hollow partition board
Middle economization agent adopts dipropylene glycol t-butyl ether, and volume is the 10wt%. of gel material content
After concrete hollow partition plate completes molding 1h at normal temperatures, Low Temperature Steam is directly carried out on the fetal membrane of molding and supports
Shield, with the ramp of 2 DEG C/min to 60 DEG C and constant temperature 2h, is down to cutting, the demoulding after room temperature；Lifting is steam-cured again after concentrating,
With the ramp of 4 DEG C/min to 95 DEG C and constant temperature 3h.
Concrete hollow partition plate steam-cured complete and be down to room temperature after, using the dipropylene glycol t-butyl ether of 30wt% concentration
Reduce agent solution and carry out the maintenance of 2 sprays, spray interval time every time for 10 days；
After the completion of spray maintenance, concrete hollow partition plate is dried with process and is less than 8% to moisture content；Dried
Concrete hollow partition plate is more than 90% in carbon dioxide volume fraction, and relative humidity is dried maintenance 3 in atmosphere less than 50%rh's
My god.
The concrete hollow partition plate drying shrinkage value that preparation method described in the present embodiment is obtained is about 0.1mm/m.
Claims (5)
1. a kind of preparation method of lower shrinkage concrete hollow partition plate, including R.C. wall board batch mixing, stirs molding, low temperature steams
Support, cut the demoulding, lifting is stacked, high-temperature steam curing, economization agent solution spraying maintenance is dried, carbon dioxide carbonized maintaining operation；
It is characterized in that: mix economization agent in the concrete preparation of hollow partition board, in type concrete hollow partition plate
Carry out before and after carrying out the demoulding that low temperature is steam-cured and high-temperature steam curing respectively, in concrete hollow partition plate maintenance using reducing agent solution
Carry out spraying maintenance；And carry out carbonization treatment after concrete hollow partition plate is dried, by reducing concrete hollow partition plate
Concrete microcosmic hole solution surface tension and improve R.C. wall board microporous structure to reduce maturing hollow partition board
Internal shrinkage stress, thus reduce the drying shrinkage value of concrete hollow partition plate；
After hollow wall plank of concrete molding completes 1h-3h, low-temperature steam maintenance operating is directly carried out on the fetal membrane of molding, with 1-2 DEG C/
The ramp of min, to 50 ± 10 DEG C and constant temperature 2-3h, is down to cutting, the demoulding after room temperature；Lifting is steam-cured again, with 1- after concentrating
To 85 ± 10 DEG C and constant temperature 3-5h, the early stage carrying out before and after the demoulding is steam-cured to advantageously reduce concrete to the ramp of 5 DEG C/min
In the microcosmic hole maximum to drying shrinkage value contribution, thus reducing drying shrinkage stress and the drying shrinkage value of wallboard；
After the completion of reducing agent solution maintenance, concrete hollow partition plate is dried with process and is less than 10% to moisture content, then
It is more than 0.5% in carbon dioxide volume fraction, relative humidity is less than maintenance wallboard under the air of 80%rh or pure carbon dioxide gas
0.5-28 days, carbon dioxide can generate Calcium Carbonate with the calcium hydroxide reaction in R.C. wall board, so that Carbonization contract is occurred in advance,
And R.C. wall board microporous structure can be improved, thus reduce shrinkage stress and the drying shrinkage value of wallboard.
2. lower shrinkage concrete hollow partition plate according to claim 1 preparation method it is characterised in that: hollow every
During the concrete preparation of wallboard, mix the economization agent accounting for binder total amount 0.1wt%-10wt% in concrete.
3. lower shrinkage concrete hollow partition plate according to claim 1 preparation method it is characterised in that: concrete is empty
Core-wall plate completes steam-cured and after being down to room temperature, and the agent solution that reduces using 1wt%-30wt% concentration carries out 1-10 spray and supports
Shield, every time spray maintenance interval time is 0.5-10 days it is ensured that concrete hollow partition plate fully absorbs and reduces agent solution.
4. lower shrinkage concrete hollow partition plate according to claim 1 preparation method it is characterised in that: using we
The drying shrinkage value of the concrete hollow partition plate that method is made can be reduced to 0.1-0.4mm/m.
5. lower shrinkage concrete hollow partition plate according to claim 1 preparation method it is characterised in that: this method fit
For reducing the dry shrinkage of the concrete hollow partition plate with Portland cement as major gelled material, concrete hollow partition
Other raw materials of plate are selected haydite, pottery sand, expanded perlite, are expanded oil shale, building waste, industrial residue.
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| CN201510045706.4A CN104556768B (en) | 2015-01-29 | 2015-01-29 | Preparation method of low-shrinkage concrete hollow wall partition board |
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| CN201510045706.4A CN104556768B (en) | 2015-01-29 | 2015-01-29 | Preparation method of low-shrinkage concrete hollow wall partition board |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109382893A (en) * | 2018-10-29 | 2019-02-26 | 南通龙哲混凝土制品有限公司 | The construction technology of partition wall |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105924219B (en) * | 2016-05-05 | 2018-11-20 | 黄绍彬 | A kind of preparation method of ceramsite foam concrete building block |
| CN107759248A (en) * | 2017-10-18 | 2018-03-06 | 南宁积家市场建设有限公司 | A kind of maintenance process of light cellular partition board |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1807335A (en) * | 2005-11-03 | 2006-07-26 | 上虞多元新型墙体有限公司 | High-strength lightweight concrete building block and method of manufacture |
| CN101125442A (en) * | 2007-06-27 | 2008-02-20 | 中南大学 | Carbon dioxide maintenance method and technology for concrete |
| CN101767370A (en) * | 2010-02-02 | 2010-07-07 | 重庆大学 | Cement concrete curing method |
| CN102690127A (en) * | 2012-06-13 | 2012-09-26 | 江苏建华新型墙材有限公司 | Preparation method of light wall material |
| CN102909783A (en) * | 2012-10-29 | 2013-02-06 | 于浩 | Production process of building envelope products |
-
2015
- 2015-01-29 CN CN201510045706.4A patent/CN104556768B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1807335A (en) * | 2005-11-03 | 2006-07-26 | 上虞多元新型墙体有限公司 | High-strength lightweight concrete building block and method of manufacture |
| CN101125442A (en) * | 2007-06-27 | 2008-02-20 | 中南大学 | Carbon dioxide maintenance method and technology for concrete |
| CN101767370A (en) * | 2010-02-02 | 2010-07-07 | 重庆大学 | Cement concrete curing method |
| CN102690127A (en) * | 2012-06-13 | 2012-09-26 | 江苏建华新型墙材有限公司 | Preparation method of light wall material |
| CN102909783A (en) * | 2012-10-29 | 2013-02-06 | 于浩 | Production process of building envelope products |
Non-Patent Citations (1)
| Title |
|---|
| "减缩剂外涂对水泥基材料性能的影响";王智等;《硅酸盐学报》;20090715;第37卷(第7（2009）期);第1085-1091页 * |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109382893A (en) * | 2018-10-29 | 2019-02-26 | 南通龙哲混凝土制品有限公司 | The construction technology of partition wall |
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