CN108840624A - A kind of rapid curing light weight board and preparation method thereof suitable for assembled architecture - Google Patents
A kind of rapid curing light weight board and preparation method thereof suitable for assembled architecture Download PDFInfo
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- 238000002360 preparation method Methods 0.000 title abstract description 8
- 239000003795 chemical substances by application Substances 0.000 claims abstract description 54
- 239000004568 cement Substances 0.000 claims abstract description 30
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 29
- 239000010881 fly ash Substances 0.000 claims abstract description 22
- PASHVRUKOFIRIK-UHFFFAOYSA-L calcium sulfate dihydrate Chemical compound O.O.[Ca+2].[O-]S([O-])(=O)=O PASHVRUKOFIRIK-UHFFFAOYSA-L 0.000 claims abstract description 18
- 239000003638 chemical reducing agent Substances 0.000 claims abstract description 17
- 239000002131 composite material Substances 0.000 claims abstract description 17
- 239000000835 fiber Substances 0.000 claims abstract description 10
- 239000002994 raw material Substances 0.000 claims abstract description 10
- -1 phosphogypsum dihydrate Chemical class 0.000 claims description 18
- 239000004794 expanded polystyrene Substances 0.000 claims description 15
- 239000002245 particle Substances 0.000 claims description 15
- 238000003756 stirring Methods 0.000 claims description 14
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims description 12
- 239000002002 slurry Substances 0.000 claims description 10
- 239000000463 material Substances 0.000 claims description 9
- 239000000203 mixture Substances 0.000 claims description 9
- PMZURENOXWZQFD-UHFFFAOYSA-L Sodium Sulfate Chemical compound [Na+].[Na+].[O-]S([O-])(=O)=O PMZURENOXWZQFD-UHFFFAOYSA-L 0.000 claims description 7
- 238000013329 compounding Methods 0.000 claims description 7
- 229910052938 sodium sulfate Inorganic materials 0.000 claims description 7
- 235000011152 sodium sulphate Nutrition 0.000 claims description 7
- 239000000377 silicon dioxide Substances 0.000 claims description 6
- DLYUQMMRRRQYAE-UHFFFAOYSA-N tetraphosphorus decaoxide Chemical compound O1P(O2)(=O)OP3(=O)OP1(=O)OP2(=O)O3 DLYUQMMRRRQYAE-UHFFFAOYSA-N 0.000 claims description 4
- 239000011398 Portland cement Substances 0.000 claims description 3
- GVGUFUZHNYFZLC-UHFFFAOYSA-N dodecyl benzenesulfonate;sodium Chemical compound [Na].CCCCCCCCCCCCOS(=O)(=O)C1=CC=CC=C1 GVGUFUZHNYFZLC-UHFFFAOYSA-N 0.000 claims description 3
- RTZKZFJDLAIYFH-UHFFFAOYSA-N ether Substances CCOCC RTZKZFJDLAIYFH-UHFFFAOYSA-N 0.000 claims description 3
- 239000001866 hydroxypropyl methyl cellulose Substances 0.000 claims description 3
- 229920003088 hydroxypropyl methyl cellulose Polymers 0.000 claims description 3
- 235000010979 hydroxypropyl methyl cellulose Nutrition 0.000 claims description 3
- UFVKGYZPFZQRLF-UHFFFAOYSA-N hydroxypropyl methyl cellulose Chemical group OC1C(O)C(OC)OC(CO)C1OC1C(O)C(O)C(OC2C(C(O)C(OC3C(C(O)C(O)C(CO)O3)O)C(CO)O2)O)C(CO)O1 UFVKGYZPFZQRLF-UHFFFAOYSA-N 0.000 claims description 3
- 229920005646 polycarboxylate Polymers 0.000 claims description 3
- 229940080264 sodium dodecylbenzenesulfonate Drugs 0.000 claims description 3
- 238000000034 method Methods 0.000 claims description 2
- 238000005336 cracking Methods 0.000 abstract description 5
- 230000032798 delamination Effects 0.000 abstract description 3
- 150000004683 dihydrates Chemical class 0.000 description 9
- 238000005192 partition Methods 0.000 description 6
- 238000000465 moulding Methods 0.000 description 5
- 238000011056 performance test Methods 0.000 description 5
- 238000011161 development Methods 0.000 description 4
- 238000004519 manufacturing process Methods 0.000 description 4
- 235000012239 silicon dioxide Nutrition 0.000 description 4
- 239000013078 crystal Substances 0.000 description 3
- 229910004298 SiO 2 Inorganic materials 0.000 description 2
- YWEUIGNSBFLMFL-UHFFFAOYSA-N diphosphonate Chemical compound O=P(=O)OP(=O)=O YWEUIGNSBFLMFL-UHFFFAOYSA-N 0.000 description 2
- 238000006703 hydration reaction Methods 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000004321 preservation Methods 0.000 description 2
- OAICVXFJPJFONN-UHFFFAOYSA-N Phosphorus Chemical compound [P] OAICVXFJPJFONN-UHFFFAOYSA-N 0.000 description 1
- GJPIVNTZJFSDCX-UHFFFAOYSA-N [V].[Ca] Chemical compound [V].[Ca] GJPIVNTZJFSDCX-UHFFFAOYSA-N 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000033228 biological regulation Effects 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 239000004566 building material Substances 0.000 description 1
- 238000003763 carbonization Methods 0.000 description 1
- 150000001875 compounds Chemical class 0.000 description 1
- 239000004567 concrete Substances 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 239000006185 dispersion Substances 0.000 description 1
- 238000001035 drying Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 229910052602 gypsum Inorganic materials 0.000 description 1
- 239000010440 gypsum Substances 0.000 description 1
- 230000036571 hydration Effects 0.000 description 1
- 238000009413 insulation Methods 0.000 description 1
- 239000011574 phosphorus Substances 0.000 description 1
- 229910052698 phosphorus Inorganic materials 0.000 description 1
- 239000011148 porous material Substances 0.000 description 1
- RMAQACBXLXPBSY-UHFFFAOYSA-N silicic acid Chemical compound O[Si](O)(O)O RMAQACBXLXPBSY-UHFFFAOYSA-N 0.000 description 1
- 239000004575 stone Substances 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 239000008030 superplasticizer Substances 0.000 description 1
Classifications
-
- 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
- C04B28/04—Portland cements
-
- 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
- C04B2111/00—Mortars, concrete or artificial stone or mixtures to prepare them, characterised by specific function, property or use
- C04B2111/40—Porous or lightweight materials
-
- 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
- C04B2201/00—Mortars, concrete or artificial stone characterised by specific physical values
- C04B2201/20—Mortars, concrete or artificial stone characterised by specific physical values for the density
-
- 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
- C04B2201/00—Mortars, concrete or artificial stone characterised by specific physical values
- C04B2201/30—Mortars, concrete or artificial stone characterised by specific physical values for heat transfer properties such as thermal insulation values, e.g. R-values
- C04B2201/32—Mortars, concrete or artificial stone characterised by specific physical values for heat transfer properties such as thermal insulation values, e.g. R-values for the thermal conductivity, e.g. K-factors
-
- 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
- C04B2201/00—Mortars, concrete or artificial stone characterised by specific physical values
- C04B2201/50—Mortars, concrete or artificial stone characterised by specific physical values for the mechanical strength
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Ceramic Engineering (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Inorganic Chemistry (AREA)
- Materials Engineering (AREA)
- Structural Engineering (AREA)
- Organic Chemistry (AREA)
- Curing Cements, Concrete, And Artificial Stone (AREA)
Abstract
本发明涉及一种适用于装配式建筑的快速固化轻质板材及其制备方法，所述快速固化轻质板材原料组分及重量份含量如下：水泥60‑80份，粉煤灰10‑30份，复合早强剂2‑6份，磷石膏5‑10份，纤维1‑5份，轻集料0.6‑1.3份，纳米硅溶胶0.1‑0.5份，减水剂0.1‑0.3份，引气剂0‑0.1份，保水剂0‑0.15份。本发明提供的快速固化轻质板材早期强度高、后期强度无倒缩，8h‑12h达到拆模强度，1d强度达28d强度的60％以上，容重在600‑1000Kg/m3范围内可调，导热系数低于0.15W/(m·K)，稳定性好，无明显分层和开裂，可用做装配式建筑预制墙板。The invention relates to a fast-curing lightweight board suitable for prefabricated buildings and a preparation method thereof. The raw material components and parts by weight of the fast-curing lightweight board are as follows: 60-80 parts of cement, 10-30 parts of fly ash , 2-6 parts of composite early strength agent, 5-10 parts of phosphogypsum, 1-5 parts of fiber, 0.6-1.3 parts of light aggregate, 0.1-0.5 part of nano-silica sol, 0.1-0.3 part of water reducing agent, air-entraining agent 0‑0.1 part, water retaining agent 0‑0.15 part. The fast-curing lightweight board provided by the present invention has high early strength and no shrinkage in the later stage. It reaches the demolition strength in 8h-12h, and the strength in 1d reaches more than 60% of the strength in 28d. The bulk density is adjustable within the range of 600-1000Kg/ m3 . The thermal conductivity is lower than 0.15W/(m·K), good stability, no obvious delamination and cracking, and can be used as prefabricated wall panels for prefabricated buildings.
Description
技术领域technical field
本发明属于建筑材料技术领域，涉及一种适用于装配式建筑的快速固化轻质板材及其制备方法。The invention belongs to the technical field of building materials, and relates to a fast-curing lightweight board suitable for prefabricated buildings and a preparation method thereof.
背景技术Background technique
装配式建筑作为建筑发展的新方向，已日渐得到普及推广。轻质板材可作为装配式墙体材料，其发展和应用对装配式建筑的发展起着重要作用。现有轻质板材以水泥基为主，存在凝结时间慢、早期强度低、强度发展慢等缺点，严重限制了生产线的生产周期，使得产量大幅度下降，并且水泥基材料本身存在收缩开裂的问题也在一定程度上限制了其应用。中国专利CN106565181A公开了一种轻质混凝土预制板的制备方法，能实现6～8h脱模，具有成品强度高、面密度轻等特点，但由于板材主要胶凝材料为水泥，水泥由于自身的性能缺陷存在化学收缩、干燥收缩以及碳化收缩等，无法克服板材收缩开裂等缺点。As a new direction of architectural development, prefabricated buildings have been increasingly popularized. Lightweight panels can be used as prefabricated wall materials, and their development and application play an important role in the development of prefabricated buildings. Existing lightweight boards are mainly cement-based, which has disadvantages such as slow setting time, low early strength, and slow strength development, which severely limits the production cycle of the production line, resulting in a significant drop in output, and the cement-based material itself has the problem of shrinkage and cracking It also limits its application to a certain extent. Chinese patent CN106565181A discloses a preparation method of lightweight concrete prefabricated slabs, which can realize demoulding within 6 to 8 hours, and has the characteristics of high finished product strength and light surface density. Defects include chemical shrinkage, drying shrinkage, and carbonization shrinkage, which cannot overcome the shortcomings of sheet shrinkage and cracking.
本发明公开一种适用于装配式建筑的快速固化轻质板材及其制备方法，可以有效解决现有轻质板材存在的问题。The invention discloses a fast-curing lightweight plate suitable for assembled buildings and a preparation method thereof, which can effectively solve the problems existing in the existing light plate.
发明内容Contents of the invention
本发明所要解决的技术问题是针对现有技术中存在的上述不足，提供一种适用于装配式建筑的快速固化轻质板材及其制备方法，制备的产品具有早期强度高、后期强度无倒缩，轻质保温、容重可调、板材稳定性好、无明显分层和开裂等优点，制备工艺简单，大幅度提高了板材的生产效率。The technical problem to be solved by the present invention is to provide a fast-curing lightweight board suitable for prefabricated buildings and its preparation method in view of the above-mentioned deficiencies in the prior art. The prepared product has high early strength and no shrinkage in the later stage , light heat preservation, adjustable bulk density, good plate stability, no obvious delamination and cracking, etc., the preparation process is simple, and the production efficiency of the plate is greatly improved.
为解决上述技术问题，本发明提供的技术方案是：In order to solve the problems of the technologies described above, the technical solution provided by the invention is:
提供了一种适用于装配式建筑的快速固化轻质板材，其原料组分及重量份含量如下：水泥60-80份，粉煤灰10-30份，复合早强剂2-6份，磷石膏5-10份，纤维1-5份，轻集料0.6-1.3份，纳米硅溶胶0.1-0.5份，减水剂0.1-0.3份，引气剂0-0.1份，保水剂0-0.15份；A fast-curing lightweight board suitable for prefabricated buildings is provided, and its raw material components and parts by weight are as follows: 60-80 parts of cement, 10-30 parts of fly ash, 2-6 parts of composite early strength agent, phosphorus 5-10 parts of gypsum, 1-5 parts of fiber, 0.6-1.3 parts of light aggregate, 0.1-0.5 parts of nano-silica sol, 0.1-0.3 parts of water reducing agent, 0-0.1 part of air-entraining agent, 0-0.15 part of water-retaining agent ;
所述复合早强剂由硫铝酸盐水泥与硫酸钠按照质量比10：1复配得到。The composite early strength agent is obtained by compounding sulphoaluminate cement and sodium sulfate at a mass ratio of 10:1.
按上述方案，所述水泥为强度等级42.5的普通硅酸盐水泥。According to the above scheme, the cement is ordinary Portland cement with a strength grade of 42.5.
按上述方案，所述粉煤灰为Ⅰ级粉煤灰、Ⅱ级粉煤灰中的一种或两种按任意比例的混合物。According to the above scheme, the fly ash is one of Class I fly ash and Class II fly ash or a mixture of the two in any proportion.
按上述方案，所述磷石膏为二水磷石膏，附着水(H2O)质量分数小于15％，二水硫酸钙的质量分数大于85％，水溶性五氧化二磷质量分数小于0.8％。According to the above scheme, the phosphogypsum is phosphogypsum dihydrate, the mass fraction of attached water (H 2 O) is less than 15%, the mass fraction of calcium sulfate dihydrate is greater than 85%, and the mass fraction of water-soluble phosphorus pentoxide is less than 0.8%.
按上述方案，所述纤维为二水磷石膏晶须，平均长度1-3mm，长径比为25-100，单纤拉伸强度大于20GPa。According to the above scheme, the fibers are phosphogypsum dihydrate whiskers with an average length of 1-3 mm, an aspect ratio of 25-100, and a single fiber tensile strength greater than 20 GPa.
按上述方案，所述轻集料为发泡聚苯乙烯(EPS)颗粒，颗粒粒径2-5mm，堆积密度8-12Kg/m3。According to the above scheme, the light aggregate is expanded polystyrene (EPS) particles with a particle size of 2-5mm and a bulk density of 8-12Kg/m 3 .
按上述方案，所述纳米硅溶胶中二氧化硅(SiO2)含量大于30％，二氧化硅粒径为10-30nm。According to the above scheme, the content of silicon dioxide (SiO 2 ) in the nano-silica sol is greater than 30%, and the particle size of the silicon dioxide is 10-30nm.
按上述方案，所述减水剂为聚羧酸减水剂，减水率大于20％。According to the above scheme, the water reducing agent is a polycarboxylate water reducing agent, and the water reducing rate is greater than 20%.
按上述方案，所述引气剂为十二烷基苯磺酸钠。According to the above scheme, the air-entraining agent is sodium dodecylbenzenesulfonate.
按上述方案，所述保水剂为羟丙基甲基纤维素醚，粘度为40000-100000mPa·s。According to the above scheme, the water-retaining agent is hydroxypropyl methyl cellulose ether with a viscosity of 40,000-100,000 mPa·s.
本发明还提供上述适用于装配式建筑的快速固化轻质板材的制备方法，具体步骤如下：The present invention also provides the preparation method of the above-mentioned fast-curing lightweight board suitable for prefabricated buildings, and the specific steps are as follows:
1)按配比称取原料，备用；1) Take the raw materials according to the proportioning ratio, and set aside;
2)将水泥、粉煤灰、复合早强剂、磷石膏、纤维加入搅拌机中干混60s，使物料均匀分散，然后按水灰比0.31-0.34加水，同时根据需要加入纳米硅溶胶、减水剂、引气剂、保水剂，搅拌2-5min，然后缓慢加入轻集料，搅拌至均匀分散，得到浆体；2) Add cement, fly ash, composite early strength agent, phosphogypsum, and fiber into the mixer and dry mix for 60 seconds to disperse the materials evenly, then add water according to the water-cement ratio of 0.31-0.34, and add nano-silica sol, agent, air-entraining agent, and water-retaining agent, stir for 2-5 minutes, then slowly add light aggregate, stir until evenly dispersed, and obtain a slurry;
3)将步骤2)所得浆体迅速注入模具中成型，得到适用于装配式建筑的快速固化轻质板材。3) The slurry obtained in step 2) is quickly injected into a mold to form a fast-curing lightweight board suitable for prefabricated buildings.
本发明采用复合早强剂促进水化反应的进行，提高轻质板材的早期强度；采用二水磷石膏促进钙钒石的生成起到补偿水泥收缩的作用；采用二水磷石膏晶须提高板材的抗折、抗冲击强度；采用纳米硅溶胶改善水化产物的微结构提高板材的整体强度。并且采用超低容重的EPS颗粒作为轻集料实现板材的轻质化，通过对浆体粘度的调控、孔结构的设计，实现EPS颗粒的高效均匀分散从而达到轻质保温、容重可调的效果。The invention adopts the composite early strength agent to promote the hydration reaction, and improves the early strength of the light board; uses dihydrate phosphogypsum to promote the formation of calcium vanadium stone to compensate for cement shrinkage; uses dihydrate phosphogypsum whiskers to improve the strength of the board. Excellent flexural and impact strength; nano-silica sol is used to improve the microstructure of the hydration product and improve the overall strength of the board. In addition, EPS particles with ultra-low bulk density are used as light aggregates to realize the light weight of the board. Through the regulation of the viscosity of the slurry and the design of the pore structure, the efficient and uniform dispersion of EPS particles is realized to achieve the effect of light heat preservation and adjustable bulk density. .
本发明的有益效果在于：本发明提供的适用于装配式建筑的快速固化轻质板材早期强度高、后期强度无倒缩，8h-12h达到拆模强度，1d强度达28d强度的60％以上，解决现有轻质板材早期强度低、生产周期长的问题，所制备出快速固化轻质板材轻质保温，容重在600-1000Kg/m3范围内可调，导热系数均低于0.15W/(m·K)，稳定性好，无明显分层和开裂，可用做装配式建筑预制墙板，各项性能均满足JGT169-2016《建筑隔墙用轻质条板通用技术要求》的标准。The beneficial effect of the present invention is that: the fast-curing lightweight plate suitable for prefabricated buildings provided by the present invention has high early strength and no shrinkage in the later stage, reaches the strength of demolition in 8h-12h, and the strength of 1d reaches more than 60% of the strength of 28d. To solve the problems of low early strength and long production cycle of the existing light boards, the fast-curing lightweight boards are prepared for light insulation, the bulk density is adjustable within the range of 600-1000Kg/m 3 , and the thermal conductivity is lower than 0.15W/( m K), good stability, no obvious delamination and cracking, can be used as prefabricated wall panels for prefabricated buildings, and all properties meet the standards of JGT169-2016 "General Technical Requirements for Lightweight Slabs for Building Partition Walls".
具体实施方式Detailed ways
为使本领域技术人员更好地理解本发明的技术方案，下面结合实施例对本发明作进一步详细描述。In order to enable those skilled in the art to better understand the technical solution of the present invention, the present invention will be further described in detail below in conjunction with examples.
本发明实施例所用纳米硅溶胶为湖北龙博纳米技术有限公司生产，纳米硅溶胶中二氧化硅(SiO2)含量大于30％，二氧化硅粒径为10-30nm；所用水泥为强度等级42.5的普通硅酸盐水泥；所用二水磷石膏附着水(H2O)质量分数小于15％，其中二水硫酸钙的质量分数89.5％，水溶性五氧化二磷质量分数小于0.8％；所用二水磷石膏晶须平均长度1-3mm，长径比为25-100，单纤拉伸强度25GPa；所用EPS粒径2-5mm，堆积密度10Kg/m3；所用减水剂为聚羧酸减水剂，减水率21％；所用引气剂为十二烷基苯磺酸钠；所用保水剂为羟丙基甲基纤维素醚，粘度为70000mPa·s。The nano-silica sol used in the embodiment of the present invention is produced by Hubei Longbo Nano Technology Co., Ltd. The content of silicon dioxide (SiO 2 ) in the nano-silica sol is greater than 30%, and the particle size of the silicon dioxide is 10-30nm; the cement used is a strength grade of 42.5 Ordinary Portland cement; the mass fraction of phosphogypsum dihydrate attached water (H 2 O) used is less than 15%, wherein the mass fraction of calcium sulfate dihydrate is 89.5%, and the mass fraction of water-soluble phosphorus pentoxide is less than 0.8%; The average length of hydrophosphogypsum whiskers is 1-3mm, the aspect ratio is 25-100, and the tensile strength of single fiber is 25GPa; the particle size of EPS used is 2-5mm, and the bulk density is 10Kg/ m3 ; the water reducer used is polycarboxylate The water agent has a water reducing rate of 21%; the air-entraining agent used is sodium dodecylbenzenesulfonate; the water-retaining agent used is hydroxypropyl methylcellulose ether, and the viscosity is 70000mPa·s.
实施例1Example 1
制备一种适用于装配式建筑的快速固化轻质板材，其原料及重量份用量为：水泥70份、Ⅱ级粉煤灰20份、复合早强剂(硫铝酸盐水泥与硫酸钠按照质量比10：1复配得到)4份、二水磷石膏6份、二水磷石膏晶须3份、EPS 1.1份、纳米硅溶胶0.3份、减水剂0.2份、引气剂0.05份、保水剂0.1份。Prepare a fast-curing lightweight board suitable for prefabricated buildings. The raw materials and weight parts are: 70 parts of cement, 20 parts of grade II fly ash, composite early strength agent (sulfoaluminate cement and sodium sulfate according to the quality Ratio 10:1 Compounding) 4 parts, phosphogypsum dihydrate 6 parts, phosphogypsum dihydrate whiskers 3 parts, EPS 1.1 parts, nano-silica sol 0.3 parts, water reducing agent 0.2 parts, air-entraining agent 0.05 parts, water retention dose 0.1 part.
按上述配方，称取水泥、二级粉煤灰、复合早强剂、二水磷石膏、二水磷石膏晶须干混60s，加入纳米硅溶胶、减水剂、引气剂、保水剂，同时按水料比0.34加水在搅拌机中搅拌2min，再将EPS颗粒加入搅拌机中搅拌3min，将制备的浆料注入成型模具中，达到拆模时间后拆模、养护，即得到适用于装配式建筑的快速固化轻质板材。According to the above formula, weigh cement, secondary fly ash, composite early strength agent, phosphogypsum dihydrate, and phosphogypsum dihydrate whiskers and dry mix for 60 seconds, add nano-silica sol, water reducing agent, air-entraining agent, and water-retaining agent. At the same time, add water according to the water-to-material ratio of 0.34 and stir in the mixer for 2 minutes, then add EPS particles into the mixer and stir for 3 minutes, inject the prepared slurry into the molding mold, and remove the mold after reaching the demoulding time, and then maintain it, which is suitable for prefabricated buildings. fast-curing lightweight sheet.
本实施例所制备的适用于装配式建筑的快速固化轻质板材性能测试数据如表1所示，各项性能均满足JGT169-2016《建筑隔墙用轻质条板通用技术要求》中各种规格产品的要求。The performance test data of the fast-curing lightweight panels suitable for prefabricated buildings prepared in this example are shown in Table 1, and all properties meet the requirements of JGT169-2016 "General Technical Requirements for Lightweight Slabs for Building Partition Walls". specification product requirements.
实施例2Example 2
制备一种适用于装配式建筑的快速固化轻质板材，其原料及重量份用量为：To prepare a fast-curing lightweight board suitable for prefabricated buildings, the raw materials and weight parts are as follows:
水泥80份、Ⅱ级粉煤灰10份、复合早强剂(硫铝酸盐水泥与硫酸钠按照质量比10：1复配得到)2份、二水磷石膏10份、二水磷石膏晶须5份、EPS 1.3份、纳米硅溶胶0.1份、减水剂0.1份、引气剂0.1份、保水剂0.15份。80 parts of cement, 10 parts of grade II fly ash, 2 parts of composite early strength agent (obtained by compounding sulphoaluminate cement and sodium sulfate at a mass ratio of 10:1), 10 parts of dihydrate phosphogypsum, dihydrate phosphogypsum crystal 5 parts of whiskers, 1.3 parts of EPS, 0.1 parts of nano-silica sol, 0.1 parts of water reducing agent, 0.1 parts of air-entraining agent, and 0.15 parts of water-retaining agent.
按上述配方，称取水泥、二级粉煤灰、复合早强剂、二水磷石膏、二水磷石膏晶须干混60s，加入纳米硅溶胶、减水剂、引气剂、保水剂，同时按水料比0.34加水在搅拌机中搅拌2min，再将EPS颗粒加入搅拌机中搅拌3min，将制备的浆料注入成型模具中，达到拆模时间后拆模、养护，即得到适用于装配式建筑的快速固化轻质板材。According to the above formula, weigh cement, secondary fly ash, composite early strength agent, phosphogypsum dihydrate, and phosphogypsum dihydrate whiskers and dry mix for 60 seconds, add nano-silica sol, water reducing agent, air-entraining agent, and water-retaining agent. At the same time, add water according to the water-to-material ratio of 0.34 and stir in the mixer for 2 minutes, then add EPS particles into the mixer and stir for 3 minutes, inject the prepared slurry into the molding mold, and remove the mold after reaching the demoulding time, and then maintain it, which is suitable for prefabricated buildings. fast-curing lightweight sheet.
本实施例所制备的适用于装配式建筑的快速固化轻质板材性能测试数据如表1所示，各项性能均满足JGT169-2016《建筑隔墙用轻质条板通用技术要求》中各种规格产品的要求。The performance test data of the fast-curing lightweight panels suitable for prefabricated buildings prepared in this example are shown in Table 1, and all properties meet the requirements of JGT169-2016 "General Technical Requirements for Lightweight Slabs for Building Partition Walls". specification product requirements.
实施例3Example 3
制备一种适用于装配式建筑的快速固化轻质板材，其原料及重量份用量为：To prepare a fast-curing lightweight board suitable for prefabricated buildings, the raw materials and weight parts are as follows:
水泥60份、Ⅰ级粉煤灰30份、复合早强剂(硫铝酸盐水泥与硫酸钠按照质量比10：1复配得到)6份、二水磷石膏5份、二水磷石膏晶须1份、EPS 0.6份、纳米硅溶胶0.5份、减水剂0.3份60 parts of cement, 30 parts of grade I fly ash, 6 parts of composite early strength agent (obtained by compounding sulphoaluminate cement and sodium sulfate at a mass ratio of 10:1), 5 parts of dihydrate phosphogypsum, dihydrate phosphogypsum crystal 1 part of whisker, 0.6 part of EPS, 0.5 part of nano silica sol, 0.3 part of superplasticizer
按上述配方，称取水泥、二级粉煤灰、复合早强剂、二水磷石膏、二水磷石膏晶须干混60s，加入纳米硅溶胶、减水剂、引气剂、保水剂，同时按水料比0.31加水在搅拌机中搅拌2min，再将EPS颗粒加入搅拌机中搅拌3min，将制备的浆料注入成型模具中，达到拆模时间后拆模、养护，即得到适用于装配式建筑的快速固化轻质板材。According to the above formula, weigh cement, secondary fly ash, composite early strength agent, phosphogypsum dihydrate, and phosphogypsum dihydrate whiskers and dry mix for 60 seconds, add nano-silica sol, water reducing agent, air-entraining agent, and water-retaining agent. At the same time, add water according to the water-to-material ratio of 0.31 and stir in the mixer for 2 minutes, then add EPS particles into the mixer and stir for 3 minutes, inject the prepared slurry into the molding mold, remove the mold after reaching the mold removal time, and maintain it, that is, it is suitable for prefabricated buildings. fast-curing lightweight sheet.
本实施例所制备的适用于装配式建筑的快速固化轻质板材性能测试数据如表1所示，各项性能均满足JGT169-2016《建筑隔墙用轻质条板通用技术要求》中各种规格产品的要求。The performance test data of the fast-curing lightweight panels suitable for prefabricated buildings prepared in this example are shown in Table 1, and all properties meet the requirements of JGT169-2016 "General Technical Requirements for Lightweight Slabs for Building Partition Walls". specification product requirements.
实施例4Example 4
制备一种适用于装配式建筑的快速固化轻质板材，其原料及重量份用量为：To prepare a fast-curing lightweight board suitable for prefabricated buildings, the raw materials and weight parts are as follows:
水泥70份、Ⅱ级粉煤灰20份、复合早强剂(硫铝酸盐水泥与硫酸钠按照质量比10：1复配得到)4份、二水磷石膏7份、二水磷石膏晶须3份、EPS 0.9份、纳米硅溶胶0.3份、减水剂0.2份、引气剂0.05份、保水剂0.1份。70 parts of cement, 20 parts of grade II fly ash, 4 parts of composite early strength agent (obtained by compounding sulphoaluminate cement and sodium sulfate at a mass ratio of 10:1), 7 parts of dihydrate phosphogypsum, dihydrate phosphogypsum crystal 3 parts of whiskers, 0.9 parts of EPS, 0.3 parts of nano-silica sol, 0.2 parts of water reducing agent, 0.05 parts of air-entraining agent, and 0.1 part of water-retaining agent.
按上述配方，称取水泥、二级粉煤灰、复合早强剂、二水磷石膏、二水磷石膏晶须干混60s，加入纳米硅溶胶、减水剂、引气剂、保水剂，同时按水料比0.32加水在搅拌机中搅拌2min，再将EPS颗粒加入搅拌机中搅拌3min，将制备的浆料注入成型模具中，达到拆模时间后拆模、养护，即得到适用于装配式建筑的快速固化轻质板材。According to the above formula, weigh cement, secondary fly ash, composite early strength agent, phosphogypsum dihydrate, and phosphogypsum dihydrate whiskers and dry mix for 60 seconds, add nano-silica sol, water reducing agent, air-entraining agent, and water-retaining agent. At the same time, add water according to the water-material ratio of 0.32 and stir in the mixer for 2 minutes, then add EPS particles into the mixer and stir for 3 minutes, inject the prepared slurry into the molding mold, remove the mold after reaching the mold removal time, and maintain it, that is, it is suitable for prefabricated buildings. fast-curing lightweight sheet.
本实施例所制备的适用于装配式建筑的快速固化轻质板材性能测试数据如表1所示，各项性能均满足JGT169-2016《建筑隔墙用轻质条板通用技术要求》中各种规格产品的要求。The performance test data of the fast-curing lightweight panels suitable for prefabricated buildings prepared in this example are shown in Table 1, and all properties meet the requirements of JGT169-2016 "General Technical Requirements for Lightweight Slabs for Building Partition Walls". specification product requirements.
实施例5Example 5
制备一种适用于装配式建筑的快速固化轻质板材，其原料及重量份用量为：To prepare a fast-curing lightweight board suitable for prefabricated buildings, the raw materials and weight parts are as follows:
水泥70份、Ⅰ级粉煤灰10份、二级粉煤灰10份、复合早强剂(硫铝酸盐水泥与硫酸钠按照质量比10：1复配得到)3份、二水磷石膏5份、二水磷石膏晶须2份、EPS 0.9份、纳米硅溶胶0.2份、减水剂0.2份、引气剂0.05份、保水剂0.1份。70 parts of cement, 10 parts of Class I fly ash, 10 parts of Class II fly ash, 3 parts of compound early strength agent (obtained by compounding sulphoaluminate cement and sodium sulfate at a mass ratio of 10:1), phosphogypsum dihydrate 5 parts, 2 parts of dihydrate phosphogypsum whiskers, 0.9 parts of EPS, 0.2 parts of nano-silica sol, 0.2 parts of water reducing agent, 0.05 parts of air-entraining agent, and 0.1 part of water-retaining agent.
按上述配方，称取水泥、二级粉煤灰、复合早强剂、二水磷石膏、二水磷石膏晶须干混60s，加入纳米硅溶胶、减水剂、引气剂、保水剂，同时按水料比0.31加水在搅拌机中搅拌2min，再将EPS颗粒加入搅拌机中搅拌3min，将制备的浆料注入成型模具中，达到拆模时间后拆模、养护，即得到适用于装配式建筑的快速固化轻质板材。According to the above formula, weigh cement, secondary fly ash, composite early strength agent, phosphogypsum dihydrate, and phosphogypsum dihydrate whiskers and dry mix for 60 seconds, add nano-silica sol, water reducing agent, air-entraining agent, and water-retaining agent. At the same time, add water according to the water-to-material ratio of 0.31 and stir in the mixer for 2 minutes, then add EPS particles into the mixer and stir for 3 minutes, inject the prepared slurry into the molding mold, remove the mold after reaching the mold removal time, and maintain it, that is, it is suitable for prefabricated buildings. fast-curing lightweight sheet.
本实施例所制备的适用于装配式建筑的快速固化轻质板材性能测试数据如表1所示，各项性能均满足JGT169-2016《建筑隔墙用轻质条板通用技术要求》中各种规格产品的要求。The performance test data of the fast-curing lightweight panels suitable for prefabricated buildings prepared in this example are shown in Table 1, and all properties meet the requirements of JGT169-2016 "General Technical Requirements for Lightweight Slabs for Building Partition Walls". specification product requirements.
表1Table 1
可以理解的是，以上实施方式仅仅是为了说明本发明的原理而采用的示例性实施方式，然而本发明并不局限于此。对于本领域内的普通技术人员而言，在不脱离本发明的精神和实质的情况下，可以做出各种变型和改进，这些变型和改进也视为本发明的保护范围。It can be understood that, the above embodiments are only exemplary embodiments adopted for illustrating the principle of the present invention, but the present invention is not limited thereto. For those skilled in the art, various modifications and improvements can be made without departing from the spirit and essence of the present invention, and these modifications and improvements are also regarded as the protection scope of the present invention.
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| CN110229017A (en) * | 2019-06-24 | 2019-09-13 | 武汉理工大学 | Glass fibre laminated film and building light-weight partition wall batten and preparation method thereof |
| CN113185199A (en) * | 2021-05-17 | 2021-07-30 | 四川统揽建设集团有限公司 | Cement stabilizing material and preparation method thereof |
| CN114368952A (en) * | 2022-02-15 | 2022-04-19 | 浙江瑞腾建筑新材料有限公司 | Steam-curing-free concrete prefabricated part and forming method thereof |
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