CN113955998A - 一种抗收缩超高韧性混凝土及制备方法 - Google Patents
一种抗收缩超高韧性混凝土及制备方法 Download PDFInfo
- Publication number
- CN113955998A CN113955998A CN202111433925.1A CN202111433925A CN113955998A CN 113955998 A CN113955998 A CN 113955998A CN 202111433925 A CN202111433925 A CN 202111433925A CN 113955998 A CN113955998 A CN 113955998A
- Authority
- CN
- China
- Prior art keywords
- parts
- shrinkage
- concrete
- mixing
- cement
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 239000004567 concrete Substances 0.000 title claims abstract description 58
- 238000002360 preparation method Methods 0.000 title claims abstract description 13
- 239000000835 fiber Substances 0.000 claims abstract description 38
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 37
- 239000010959 steel Substances 0.000 claims abstract description 37
- 238000003756 stirring Methods 0.000 claims abstract description 26
- 239000004568 cement Substances 0.000 claims abstract description 25
- 238000002156 mixing Methods 0.000 claims abstract description 25
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 23
- VTYYLEPIZMXCLO-UHFFFAOYSA-L Calcium carbonate Chemical compound [Ca+2].[O-]C([O-])=O VTYYLEPIZMXCLO-UHFFFAOYSA-L 0.000 claims abstract description 18
- 239000000463 material Substances 0.000 claims abstract description 15
- 239000003638 chemical reducing agent Substances 0.000 claims abstract description 13
- 229910021487 silica fume Inorganic materials 0.000 claims abstract description 13
- 239000010881 fly ash Substances 0.000 claims abstract description 11
- 229910000019 calcium carbonate Inorganic materials 0.000 claims abstract description 9
- 229910052500 inorganic mineral Inorganic materials 0.000 claims abstract description 8
- 239000011707 mineral Substances 0.000 claims abstract description 8
- 239000002245 particle Substances 0.000 claims abstract description 8
- 230000002745 absorbent Effects 0.000 claims abstract description 6
- 239000002250 absorbent Substances 0.000 claims abstract description 6
- 239000003795 chemical substances by application Substances 0.000 claims abstract description 6
- 239000002086 nanomaterial Substances 0.000 claims abstract description 6
- 239000011347 resin Substances 0.000 claims abstract description 6
- 229920005989 resin Polymers 0.000 claims abstract description 6
- JHLNERQLKQQLRZ-UHFFFAOYSA-N calcium silicate Chemical compound [Ca+2].[Ca+2].[O-][Si]([O-])([O-])[O-] JHLNERQLKQQLRZ-UHFFFAOYSA-N 0.000 claims abstract description 5
- 229910052918 calcium silicate Inorganic materials 0.000 claims abstract description 5
- 235000012241 calcium silicate Nutrition 0.000 claims abstract description 5
- 239000000203 mixture Substances 0.000 claims description 21
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N silicon dioxide Inorganic materials O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims description 16
- 239000000843 powder Substances 0.000 claims description 9
- 229920000247 superabsorbent polymer Polymers 0.000 claims description 9
- 239000006004 Quartz sand Substances 0.000 claims description 8
- 239000010453 quartz Substances 0.000 claims description 8
- 239000002904 solvent Substances 0.000 claims description 4
- 239000008399 tap water Substances 0.000 claims description 4
- 235000020679 tap water Nutrition 0.000 claims description 4
- 239000011398 Portland cement Substances 0.000 claims description 2
- 239000002253 acid Substances 0.000 claims description 2
- 239000011230 binding agent Substances 0.000 claims description 2
- 239000002657 fibrous material Substances 0.000 claims description 2
- 238000007580 dry-mixing Methods 0.000 abstract description 5
- 238000012423 maintenance Methods 0.000 abstract description 3
- 238000000034 method Methods 0.000 description 9
- 238000010521 absorption reaction Methods 0.000 description 2
- 239000004574 high-performance concrete Substances 0.000 description 2
- 239000002994 raw material Substances 0.000 description 2
- 238000010998 test method Methods 0.000 description 2
- BPQQTUXANYXVAA-UHFFFAOYSA-N Orthosilicate Chemical compound [O-][Si]([O-])([O-])[O-] BPQQTUXANYXVAA-UHFFFAOYSA-N 0.000 description 1
- 238000005452 bending Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000001112 coagulating effect Effects 0.000 description 1
- 239000002131 composite material Substances 0.000 description 1
- 230000008602 contraction Effects 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 229920005646 polycarboxylate Polymers 0.000 description 1
- 239000011374 ultra-high-performance concrete 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
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B28—WORKING CEMENT, CLAY, OR STONE
- B28C—PREPARING CLAY; PRODUCING MIXTURES CONTAINING CLAY OR CEMENTITIOUS MATERIAL, e.g. PLASTER
- B28C5/00—Apparatus or methods for producing mixtures of cement with other substances, e.g. slurries, mortars, porous or fibrous compositions
- B28C5/40—Mixing specially adapted for preparing mixtures containing fibres
- B28C5/402—Methods
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B28—WORKING CEMENT, CLAY, OR STONE
- B28C—PREPARING CLAY; PRODUCING MIXTURES CONTAINING CLAY OR CEMENTITIOUS MATERIAL, e.g. PLASTER
- B28C5/00—Apparatus or methods for producing mixtures of cement with other substances, e.g. slurries, mortars, porous or fibrous compositions
- B28C5/40—Mixing specially adapted for preparing mixtures containing fibres
- B28C5/404—Pre-treatment of fibres
-
- 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
- C04B14/00—Use of inorganic materials as fillers, e.g. pigments, for mortars, concrete or artificial stone; Treatment of inorganic materials specially adapted to enhance their filling properties in mortars, concrete or artificial stone
- C04B14/02—Granular materials, e.g. microballoons
- C04B14/26—Carbonates
- C04B14/28—Carbonates of calcium
-
- 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
- C04B14/00—Use of inorganic materials as fillers, e.g. pigments, for mortars, concrete or artificial stone; Treatment of inorganic materials specially adapted to enhance their filling properties in mortars, concrete or artificial stone
- C04B14/38—Fibrous materials; Whiskers
- C04B14/48—Metal
-
- 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
- C04B18/00—Use of agglomerated or waste materials or refuse as fillers for mortars, concrete or artificial stone; Treatment of agglomerated or waste materials or refuse, specially adapted to enhance their filling properties in mortars, concrete or artificial stone
- C04B18/04—Waste materials; Refuse
- C04B18/06—Combustion residues, e.g. purification products of smoke, fumes or exhaust gases
- C04B18/08—Flue dust, i.e. fly ash
-
- 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
- C04B18/00—Use of agglomerated or waste materials or refuse as fillers for mortars, concrete or artificial stone; Treatment of agglomerated or waste materials or refuse, specially adapted to enhance their filling properties in mortars, concrete or artificial stone
- C04B18/04—Waste materials; Refuse
- C04B18/14—Waste materials; Refuse from metallurgical processes
- C04B18/146—Silica fume
-
- 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
- C04B20/00—Use of materials as fillers for mortars, concrete or artificial stone according to more than one of groups C04B14/00 - C04B18/00 and characterised by shape or grain distribution; Treatment of materials according to more than one of the groups C04B14/00 - C04B18/00 specially adapted to enhance their filling properties in mortars, concrete or artificial stone; Expanding or defibrillating materials
- C04B20/0076—Use of materials as fillers for mortars, concrete or artificial stone according to more than one of groups C04B14/00 - C04B18/00 and characterised by shape or grain distribution; Treatment of materials according to more than one of the groups C04B14/00 - C04B18/00 specially adapted to enhance their filling properties in mortars, concrete or artificial stone; Expanding or defibrillating materials characterised by the grain distribution
- C04B20/008—Micro- or nanosized fillers, e.g. micronised fillers with particle size smaller than that of the hydraulic binder
-
- 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
- C04B40/00—Processes, in general, for influencing or modifying the properties of mortars, concrete or artificial stone compositions, e.g. their setting or hardening ability
- C04B40/0028—Aspects relating to the mixing step of the mortar preparation
-
- 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
- C04B2111/34—Non-shrinking or non-cracking materials
- C04B2111/343—Crack resistant 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
- C04B2201/50—Mortars, concrete or artificial stone characterised by specific physical values for the mechanical strength
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02W—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
- Y02W30/00—Technologies for solid waste management
- Y02W30/50—Reuse, recycling or recovery technologies
- Y02W30/91—Use of waste materials as fillers for mortars or concrete
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Ceramic Engineering (AREA)
- Structural Engineering (AREA)
- Organic Chemistry (AREA)
- Materials Engineering (AREA)
- Civil Engineering (AREA)
- Environmental & Geological Engineering (AREA)
- Mechanical Engineering (AREA)
- Combustion & Propulsion (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Inorganic Chemistry (AREA)
- Dispersion Chemistry (AREA)
- Nanotechnology (AREA)
- Curing Cements, Concrete, And Artificial Stone (AREA)
Abstract
本发明公开了一种抗收缩超高韧性混凝土(STC)及制备方法。由以下质量份数的材料制成:水泥800份,细集料1000~1040份,矿物掺合料250~280份,纳米材料20~24份,钢纤维180~200份,内养护剂3~5份,减水剂12~16份,水270~280份;本发明混凝土掺加纳米碳酸钙,降低硅灰掺量,保证混凝土性能;掺加高吸水树脂,增加附加水胶比,既减小了混凝土收缩,又可用于内部自养护;同时加入硅酸二钙含量偏高的水泥及粉煤灰、钢纤维等材料可抑制混凝土早期收缩;制备中,钢纤维采用钢纤维分散器辅助保证钢纤维分散均匀且乱向分布;先干拌后湿拌可保证钢纤维在掺合料中被强烈分散,分散性好;湿拌中采用振动搅拌增强掺料颗粒运动破坏黏聚的水泥、纤维团,拌合更均匀。
Description
技术领域
本发明涉及混凝土配制技术领域,具体是一种抗收缩超高韧性混凝土(STC)配比及制备方法。
背景技术
超高性能混凝土(ST)是由水泥、矿物掺合料、细集料、钢纤维和减水剂等材料或由上述材料制成干混料先加水拌合,再经凝结硬化后形成的一种具有高抗弯强度、高韧性、高耐久性的水泥基复合材料,近年被广泛应用于桥梁、道路、土建结构等混凝土工程中。
但由于高性能混凝土水胶比偏低、水泥含量高、活性粉末掺量大,导致混凝土自收缩性较大,混凝土硬化期间极易产生收缩裂缝;且拌和过程中钢纤维极易成团,导致混凝土硬化期间内部应力不均,也易产生收缩裂缝。
发明内容
本发明的目的在于提供一种抗收缩超高韧性混凝土(STC)配比及制备方法,以解决高性能混凝土易产生收缩裂缝及拌和过程中钢纤维易成团问题。
本发明通过以下技术方案实现:
一种抗收缩超高韧性混凝土,由以下质量份数的材料制成:
水泥:800份;
细集料:1000~1040份;
矿物掺合料:250~280份;
纳米材料:20~24份;
钢纤维:180~200份;
内养护剂:3~5份;
减水剂:12~16份;
水:270~280份。
作为本发明进一步的方案:所述水泥为硅酸二钙含量不低于40wt%的硅酸盐水泥;
作为本发明再进一步的方案:所述细集料由石英粉、石英砂混合而成,且石英粉与石英砂的质量比例为1:5~6。
作为本发明再进一步的方案:所述矿物掺合料由硅灰、粉煤灰混合而成,且硅灰与粉煤灰的质量比例为3:4。
作为本发明再进一步的方案:所述纳米材料为纳米碳酸钙,平均粒径为60nm。
作为本发明再进一步的方案:所述钢纤维由长度7mm、长径比50与长度13mm、长径比65的波纹型镀铜高强钢纤维混合而成,两种钢纤维质量比例1:1。
作为本发明再进一步的方案:所述内养护剂采用高吸水树脂(SAP),粒径分布120~200目。
作为本发明再进一步的方案:所述减水剂采用聚羧酸减水剂,减水率大于30%。
本发明还公开了上述抗收缩超高韧性混凝土的制备方法,制备步骤如下:
S1:按比例将石英砂、石英粉、硅灰、纳米碳酸钙材料混合放入搅拌设备中进行干拌,干拌时间90s;
S2:按比例将水泥、粉煤灰材料混合放入搅拌设备中进行干拌,干拌时间90s;
S3:按比例将两种钢纤维材料混合放入钢纤维分散器中,由钢纤维分散器搅拌散入搅拌设备中进行干拌,干拌时间120s;
S4:最后按比例加入溶有减水剂、高吸水树脂(SAP)的自来水,放入搅拌设备中,振动搅拌180s后出机,从而获得抗收缩性STC超高韧性混凝土。
与现有技术相比,本发明的有益效果是:
本发明在混凝土原材料中,通过掺加纳米碳酸钙材料,降低硅灰掺量(硅灰掺量越高,混凝土收缩越大),以保证混凝土工作性能及力学性能;通过掺加高吸水树脂,利用其一定的吸水量,增加了附加水胶比,既减小了混凝土收缩,又可用于内部自养护;同时加入硅酸二钙含量偏高的水泥、粉煤灰、钢纤维等材料可抑制混凝土早期收缩。
本发明在混凝土制备工艺中,钢纤维掺加采用钢纤维分散器辅助,可保证钢纤维分散均匀且乱向分布;混合料采用先干拌后湿拌工艺,可保证钢纤维在水泥细集料矿物掺合料中被强烈分散,从而分散性好;湿拌过程中采用振动搅拌方式,可增强掺料颗粒运动的同时破坏黏聚在一起的水泥团、纤维团等,使拌合物更加均匀。
具体实施方式
下面结合具体实施方式对本发明进一步说明,具体实施方式是对本发明原理的进一步说明,不以任何方式限制本发明,与本发明相同或类似技术均没有超出本发明保护的范围。
以下结合具体实施例对本发明作进一步详细说明。
本发明抗收缩性超高韧性混凝土配方中:水泥为硅酸盐含量较高的P.O52.5水泥;石英砂粒径0.9~2mm;石英粉平均粒径50.1um;粉煤灰为I级;硅灰平均粒径88nm,比表面积18.500m2/g;纳米材料为纳米碳酸钙,平均粒径为60nm;钢纤维为长度7mm、长径比50及长度13mm、长径比65的波纹型镀铜高强钢纤维;内养护剂为高吸水树脂(SAP),粒径分布120~200目;减水剂为FOX-8HP型聚羧酸减水剂,减水率大于30%。水为普通自来水。混凝土搅拌采用自行研发的振动搅拌装置。
混凝土力学性能试验按照《混凝土物理力学性能试验方法标准》(GB/T50081)和《普通混凝土长期性能和耐久性能试验方法标准》(GB/T50082)的相关规定进行。
实施例1
抗收缩性超高韧性混凝土STC各组分的单方用量配比(kg/m3)如下表所示。单方用量配比是指1m3混凝土中各组分的重量比。
配制方法:
步骤一:向搅拌机(不开振动)内加入石英砂、石英粉、硅灰、纳米碳酸钙,干拌90s;
步骤二:向搅拌机(不开振动)内加入水泥、粉煤灰,干拌时间90s;
步骤三:向钢纤维分散器内加入钢纤维,同时启动搅拌机(不开振动),干拌120s;
步骤四:向搅拌机(开振动)内加入溶有减水剂、高吸水树脂(SAP)的自来水,湿拌180s后出机,从而获得抗收缩性STC超高韧性混凝土。
经测试,按照上述方法制得的具有高工作性的高韧性混凝土的工作性能和力学性能如下表所示。
实施例2
抗收缩性超高韧性混凝土STC各组分的单方用量配比(kg/m3)如下表所示。单方用量配比是指1m3混凝土中各组分的重量比。
制备方法同实施例1。
经测试,按照上述方法制得的具有高工作性的高韧性混凝土的工作性能和力学性能如下表所示。
综合所述,本发明的抗收缩性STC超高韧性混凝土工作性能及力学性能均满足STC22等级要求。在混凝土原材料中,通过掺加纳米碳酸钙材料,降低硅灰掺量(硅灰掺量越高,混凝土收缩越大),保证了混凝土工作性能及力学性能;通过掺加高吸水树脂,考虑一定的吸水量,增加了附加水胶比,即减小了混凝土收缩,又可用于内部自养护;同时加入硅酸二钙含量偏高的水泥、粉煤灰、钢纤维等材料可抑制混凝土早期收缩。
本发明在混凝土制备工艺中,钢纤维掺加采用钢纤维分散器辅助,可保证钢纤维分散均匀且乱向分布;混合料采用先干拌后湿拌工艺,可保证钢纤维在水泥细集料矿物掺合料中被强烈分散,从而分散性好;湿拌过程中采用振动搅拌方式,可增强掺料颗粒运动的同时破坏黏聚在一起的水泥团、纤维团等,使拌合物更加均匀。
Claims (9)
1.一种抗收缩超高韧性混凝土,其特征在于由以下质量份数的材料制成:
水泥:800份;
细集料:1000~1040份;
矿物掺合料:250~280份;
纳米材料:20~24份;
钢纤维:180~200份;
内养护剂:3~5份;
减水剂:12~16份;
水:270~280份。
2.根据权利要求1所述抗收缩超高韧性混凝土,其特征在于:所述水泥为硅酸二钙含量不低于40wt%的硅酸盐水泥。
3.根据权利要求1所述抗收缩超高韧性混凝土,其特征在于:所述细集料由石英粉、石英砂混合而成,且石英粉与石英砂的质量比例为1:5~6。
4.根据权利要求1所述抗收缩超高韧性混凝土,其特征在于:所述矿物掺合料由硅灰、粉煤灰混合而成,且硅灰与粉煤灰的质量比例为3:4。
5.根据权利要求1所述抗收缩超高韧性混凝土,其特征在于:所述纳米材料为纳米碳酸钙,平均粒径为60nm。
6.根据权利要求1所述抗收缩超高韧性混凝土,其特征在于:所述钢纤维由长度7mm、长径比50与长度13mm、长径比65的波纹型镀铜高强钢纤维混合而成,两种钢纤维质量比例1:1。
7.根据权利要求1所述抗收缩超高韧性混凝土,其特征在于:所述内养护剂采用高吸水树脂(SAP),粒径分布120~200目。
8.根据权利要求1所述抗收缩超高韧性混凝土,其特征在于:所述减水剂采用聚羧酸减水剂,减水率大于30%。
9.一种抗收缩超高韧性混凝土制备方法,其特征在于:混凝土是权利要求1至8任一项所述的抗收缩性超高韧性混凝土,制备步骤如下:
S1:按比例将石英砂、石英粉、硅灰、纳米碳酸钙材料混合放入搅拌设备中进行干拌,干拌时间90s;
S2:按比例将水泥、粉煤灰材料混合放入搅拌设备中进行干拌,干拌时间90s;
S3:按比例将两种钢纤维材料混合放入钢纤维分散器中,由钢纤维分散器搅拌散入搅拌设备中进行干拌,干拌时间120s;
S4:最后按比例加入溶有减水剂、高吸水树脂(SAP)的自来水,放入搅拌设备中,振动搅拌180s后出机,从而获得抗收缩性STC超高韧性混凝土。
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN202111433925.1A CN113955998A (zh) | 2021-11-29 | 2021-11-29 | 一种抗收缩超高韧性混凝土及制备方法 |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN202111433925.1A CN113955998A (zh) | 2021-11-29 | 2021-11-29 | 一种抗收缩超高韧性混凝土及制备方法 |
Publications (1)
Publication Number | Publication Date |
---|---|
CN113955998A true CN113955998A (zh) | 2022-01-21 |
Family
ID=79472354
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CN202111433925.1A Pending CN113955998A (zh) | 2021-11-29 | 2021-11-29 | 一种抗收缩超高韧性混凝土及制备方法 |
Country Status (1)
Country | Link |
---|---|
CN (1) | CN113955998A (zh) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN114907082A (zh) * | 2022-06-01 | 2022-08-16 | 广西北投交通养护科技集团有限公司 | 快硬微膨胀高抗裂养护材料及其制备方法和应用 |
CN115674413A (zh) * | 2022-09-26 | 2023-02-03 | 保利长大工程有限公司 | 一种装配式ω型排水槽的制作方法及施工方法 |
Citations (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN101863072A (zh) * | 2010-06-11 | 2010-10-20 | 东南大学 | 一种提升高强微膨胀混凝土性能的内养护工艺 |
CN104556881A (zh) * | 2015-01-19 | 2015-04-29 | 黄政宇 | 一种超高韧性混凝土及其制备方法 |
CN105272027A (zh) * | 2015-09-23 | 2016-01-27 | 江苏苏博特新材料股份有限公司 | 一种抗压强度300MPa以上超高性能混凝土及其制备方法 |
CN108358556A (zh) * | 2018-03-08 | 2018-08-03 | 同济大学 | 一种掺加sap的低收缩型超高性能混凝土 |
CN108929080A (zh) * | 2017-05-24 | 2018-12-04 | 湖南大学 | 一种微膨胀补偿收缩超高性能混凝土及其制备方法 |
CN110776284A (zh) * | 2019-09-03 | 2020-02-11 | 宁夏润宇泽节能环保有限公司 | 一种stc超高韧性混凝土配方及生产工艺 |
CN112897954A (zh) * | 2021-03-15 | 2021-06-04 | 南京林业大学 | 一种高弹性模量超高性能混凝土及制备方法 |
US20210221738A1 (en) * | 2020-01-17 | 2021-07-22 | Robert P. Mueller | Composite cementitious discrete-element feedstock |
-
2021
- 2021-11-29 CN CN202111433925.1A patent/CN113955998A/zh active Pending
Patent Citations (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN101863072A (zh) * | 2010-06-11 | 2010-10-20 | 东南大学 | 一种提升高强微膨胀混凝土性能的内养护工艺 |
CN104556881A (zh) * | 2015-01-19 | 2015-04-29 | 黄政宇 | 一种超高韧性混凝土及其制备方法 |
CN105272027A (zh) * | 2015-09-23 | 2016-01-27 | 江苏苏博特新材料股份有限公司 | 一种抗压强度300MPa以上超高性能混凝土及其制备方法 |
CN108929080A (zh) * | 2017-05-24 | 2018-12-04 | 湖南大学 | 一种微膨胀补偿收缩超高性能混凝土及其制备方法 |
CN108358556A (zh) * | 2018-03-08 | 2018-08-03 | 同济大学 | 一种掺加sap的低收缩型超高性能混凝土 |
CN110776284A (zh) * | 2019-09-03 | 2020-02-11 | 宁夏润宇泽节能环保有限公司 | 一种stc超高韧性混凝土配方及生产工艺 |
US20210221738A1 (en) * | 2020-01-17 | 2021-07-22 | Robert P. Mueller | Composite cementitious discrete-element feedstock |
CN112897954A (zh) * | 2021-03-15 | 2021-06-04 | 南京林业大学 | 一种高弹性模量超高性能混凝土及制备方法 |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN114907082A (zh) * | 2022-06-01 | 2022-08-16 | 广西北投交通养护科技集团有限公司 | 快硬微膨胀高抗裂养护材料及其制备方法和应用 |
CN115674413A (zh) * | 2022-09-26 | 2023-02-03 | 保利长大工程有限公司 | 一种装配式ω型排水槽的制作方法及施工方法 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
CN106747128B (zh) | 一种大流态高强无收缩灌浆料及其制备方法 | |
CN107814498B (zh) | 用于快速修补的纳米改性干混碱激发胶凝材料 | |
CN103896527A (zh) | 轻质高强水泥基复合材料 | |
CN113955998A (zh) | 一种抗收缩超高韧性混凝土及制备方法 | |
CN111116132A (zh) | 用于组合结构及装配式建筑节点的灌浆料及其制备方法 | |
CN108585679B (zh) | 一种低收缩绿色uhpc及其制备方法 | |
CN105272004A (zh) | 轻质高强水泥基复合材料 | |
CN105948649A (zh) | 施工现场养护条件下200MPa级防爆裂活性粉末混凝土及其制备方法 | |
CN108101446A (zh) | 玄武岩纤维复合筋砼及其制备方法 | |
JP4709677B2 (ja) | プレミクス高靭性ポリマーセメントモルタル材料及び高靭性ポリマーセメントモルタル | |
CN105060791A (zh) | 一种适于钢锚梁索塔锚固结构的c60自密实补偿收缩抗裂混凝土及其制备方法 | |
CN108191357A (zh) | 一种增强c30粉煤灰陶粒混凝土及其制备方法 | |
CN112876180A (zh) | 一种快速硬化胶凝材料及其制备方法和应用 | |
CN113004005A (zh) | 一种基于机制砂制备的水泥基灌浆材料 | |
CN113149556A (zh) | 一种超长结构用抗裂混凝土及其制备方法 | |
CN112125570A (zh) | 一种喷射混凝土用掺合料及其制备方法和应用 | |
CN113860821B (zh) | 一种绿色环保型轻集料混凝土及其制备方法 | |
CN111732381A (zh) | 一种磷渣粉混凝土的制备方法 | |
KR100502205B1 (ko) | 건축 재료 | |
CN1415573A (zh) | 一种超快硬道路修补材料 | |
CN108640605A (zh) | 一种组合物、制备方法及其在混凝土领域的应用 | |
CN111268988B (zh) | 一种高耐水免煅烧磷石膏基边坡砌块材料及其制备 | |
CN109608148B (zh) | 刚弹性纳米粉协同增强增韧灌浆料及其制备方法和应用 | |
JP4451083B2 (ja) | モルタルの製造方法 | |
CN114538859B (zh) | 一种c80绿色环保轻质混凝土及其制备工艺 |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
PB01 | Publication | ||
PB01 | Publication | ||
SE01 | Entry into force of request for substantive examination | ||
SE01 | Entry into force of request for substantive examination | ||
RJ01 | Rejection of invention patent application after publication | ||
RJ01 | Rejection of invention patent application after publication |
Application publication date: 20220121 |