Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Organic-inorganic composite toughening material and application thereof in concrete
The invention provides an organic-inorganic composite toughening material and application thereof in concrete. The organic-inorganic composite toughening material comprises a polymeric monomer, a cross-linking agent, an initiator and a micro-interface enhancer, wherein the polymeric monomer is selected from a mixture of any one or more of acrylamide, acrylate and metacrylic acid ester; the micro-interface enhancer is selected from a mixture of any one or more of nano wollastonite, calcium carbonate whiskers and calcium sulfate whiskers; when the organic-inorganic composite toughening material is applied to concrete, a polymeric monomer is subjected to in-situ polymerization in cement concrete under the action of an initiator and a cross-linking agent to form a high-molecular polymer, and the polymeric monomer accounts for 1%-5% of the mass of cement. According to the concrete prepared from the composite toughening material disclosed by the invention, the compressive strength is not influenced or reduced while the bending stress and the fracture energy are improved, and the problems of low bending strength, poor toughness and the like of an existing concrete material are solved.
本发明提供了一种有机‑无机复合增韧材料及其在混凝土中的应用。本发明所述有机‑无机复合增韧材料包括聚合单体、交联剂、引发剂及微界面强化剂，所述聚合单体选自丙烯酰胺、丙烯酸盐和甲基丙烯酸酯中的任意一种以上混合；所述微界面强化剂选自纳米硅灰石、碳酸钙晶须、硫酸钙晶须中的任意一种以上混合；所述有机‑无机复合增韧材料应用于混凝土中时，聚合单体在引发剂和交联剂的作用下在水泥混凝土中原位聚合形成高分子聚合物，其中聚合单体占水泥质量的1％～5％。采用本发明所述复合增韧材料制得的混凝土在提高抗弯应力及断裂能的同时，不影响或不降低抗压强度，改善现有混凝土材料抗折强度低、韧性差等问题。
Organic-inorganic composite toughening material and application thereof in concrete
The invention provides an organic-inorganic composite toughening material and application thereof in concrete. The organic-inorganic composite toughening material comprises a polymeric monomer, a cross-linking agent, an initiator and a micro-interface enhancer, wherein the polymeric monomer is selected from a mixture of any one or more of acrylamide, acrylate and metacrylic acid ester; the micro-interface enhancer is selected from a mixture of any one or more of nano wollastonite, calcium carbonate whiskers and calcium sulfate whiskers; when the organic-inorganic composite toughening material is applied to concrete, a polymeric monomer is subjected to in-situ polymerization in cement concrete under the action of an initiator and a cross-linking agent to form a high-molecular polymer, and the polymeric monomer accounts for 1%-5% of the mass of cement. According to the concrete prepared from the composite toughening material disclosed by the invention, the compressive strength is not influenced or reduced while the bending stress and the fracture energy are improved, and the problems of low bending strength, poor toughness and the like of an existing concrete material are solved.
本发明提供了一种有机‑无机复合增韧材料及其在混凝土中的应用。本发明所述有机‑无机复合增韧材料包括聚合单体、交联剂、引发剂及微界面强化剂，所述聚合单体选自丙烯酰胺、丙烯酸盐和甲基丙烯酸酯中的任意一种以上混合；所述微界面强化剂选自纳米硅灰石、碳酸钙晶须、硫酸钙晶须中的任意一种以上混合；所述有机‑无机复合增韧材料应用于混凝土中时，聚合单体在引发剂和交联剂的作用下在水泥混凝土中原位聚合形成高分子聚合物，其中聚合单体占水泥质量的1％～5％。采用本发明所述复合增韧材料制得的混凝土在提高抗弯应力及断裂能的同时，不影响或不降低抗压强度，改善现有混凝土材料抗折强度低、韧性差等问题。
Organic-inorganic composite toughening material and application thereof in concrete
一种有机-无机复合增韧材料及其在混凝土中的应用
TANG JINHUI (Autor:in) / XU JIE (Autor:in) / GAO CHANG (Autor:in) / WANG RUI (Autor:in) / WANG WENBIN (Autor:in) / SHU XIN (Autor:in) / HAN FANGYU (Autor:in) / LIU JIAPING (Autor:in)
30.12.2022
Patent
Elektronische Ressource
Chinesisch
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