Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Nano silicon dioxide modified high-tensile-strength strain hardening cement-based composite material and preparation method thereof
The invention relates to a nano-silica modified strain hardening cement-based composite material with high tensile strength and a preparation method thereof, the composite material comprises the following raw materials by mass: 720-780 parts of cement, 170-190 parts of fly ash, 170-190 parts of silica fume, 940-980 parts of quartz sand, 220-240 parts of steel fiber, 20-40 parts of nano-silica, 25-30 parts of a water reducer, and 170-180 parts of water. The preparation method comprises the following steps: stirring and mixing the raw materials in parts by mass, and performing steam curing. The compressive strength of the prepared cement-based composite material is larger than 200 MPa, the tensile strength is larger than 10 MPa, the cement-based composite material has the strain hardening characteristic, the toughness of the material can be remarkably improved, and the tensile failure degree of the structure is reduced.
一种纳米二氧化硅改性高抗拉强度应变硬化水泥基复合材料及其制备方法，该复合材料的原材料包括以下质量组分：水泥720‑780份，粉煤灰170‑190份，硅灰170‑190份，石英砂940‑980份，钢纤维220‑240份，纳米二氧化硅20‑40份，减水剂25‑30份，水170‑180份，将原材料按质量份搅拌混合后经蒸汽养护即可制得；本发明所制备的水泥基复合材料抗压强度大于200MPa，抗拉强度大于10MPa，且具有应变硬化特性，可显著提升材料韧性，减轻结构拉伸破坏程度。
Nano silicon dioxide modified high-tensile-strength strain hardening cement-based composite material and preparation method thereof
The invention relates to a nano-silica modified strain hardening cement-based composite material with high tensile strength and a preparation method thereof, the composite material comprises the following raw materials by mass: 720-780 parts of cement, 170-190 parts of fly ash, 170-190 parts of silica fume, 940-980 parts of quartz sand, 220-240 parts of steel fiber, 20-40 parts of nano-silica, 25-30 parts of a water reducer, and 170-180 parts of water. The preparation method comprises the following steps: stirring and mixing the raw materials in parts by mass, and performing steam curing. The compressive strength of the prepared cement-based composite material is larger than 200 MPa, the tensile strength is larger than 10 MPa, the cement-based composite material has the strain hardening characteristic, the toughness of the material can be remarkably improved, and the tensile failure degree of the structure is reduced.
一种纳米二氧化硅改性高抗拉强度应变硬化水泥基复合材料及其制备方法，该复合材料的原材料包括以下质量组分：水泥720‑780份，粉煤灰170‑190份，硅灰170‑190份，石英砂940‑980份，钢纤维220‑240份，纳米二氧化硅20‑40份，减水剂25‑30份，水170‑180份，将原材料按质量份搅拌混合后经蒸汽养护即可制得；本发明所制备的水泥基复合材料抗压强度大于200MPa，抗拉强度大于10MPa，且具有应变硬化特性，可显著提升材料韧性，减轻结构拉伸破坏程度。
Nano silicon dioxide modified high-tensile-strength strain hardening cement-based composite material and preparation method thereof
一种纳米二氧化硅改性高抗拉强度应变硬化水泥基复合材料及其制备方法
LI LEI (Autor:in) / ZHANG CHUNXIAO (Autor:in) / LI MINGZHE (Autor:in) / LIU JINGBIAO (Autor:in) / WEI JIUQI (Autor:in) / WANG SHIHE (Autor:in) / CAO SHAOHUA (Autor:in)
26.08.2022
Patent
Elektronische Ressource
Chinesisch
IPC:
C04B
Kalk
,
LIME
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