A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
Polymer modified cement-based patching material and preparation method thereof
The invention relates to the field of building materials, and discloses a polymer modified cement-based repairing material and a preparation method thereof. The polymer modified cement-based repairing material is prepared from the following raw materials in parts by weight: 15 to 30 parts of waterborne epoxy resin, 3 to 8 parts of curing agent, 100 to 120 parts of cement, 20 to 35 parts of fly ash, 15 to 25 parts of modified steel fiber, 200 to 300 parts of fine aggregate, 5 to 15 parts of modified polyvinyl alcohol, 0.3 to 1 part of water reducing agent, 0.2 to 0.5 part of defoaming agent and 25 to 50 parts of deionized water. The modified steel fibers are prepared by modifying silicon dioxide-loaded steel fibers with polyethyleneimine and then grafting carboxylated metakaolin; by adding the modified steel fibers and the modified polyvinyl alcohol, a cement base obtains higher interface bonding strength, the compressive strength and the breaking strength are high, corrosion of the steel fibers can be effectively hindered, and meanwhile, the maximum pullout force and pullout energy consumption are both improved.
本发明涉及建筑材料领域，公开了一种聚合物改性水泥基修补材料及其制备方法，该聚合物改性水泥基修补材料包括以下重量份原料：水性环氧树脂15～30份、固化剂3～8份、水泥100～120份、粉煤灰20～35份、改性钢纤维15～25份、细骨料200～300份、改性聚乙烯醇5～15份、减水剂0.3～1份、消泡剂0.2～0.5份、去离子水25～50份；改性钢纤维为利用聚乙烯亚胺改性负载二氧化硅钢纤维后接枝羧基化偏高岭土制备得到的改性钢纤维；改性聚乙烯醇为羧基化聚乙烯醇，本发明通过改性钢纤维和改性聚乙烯醇的添加，使得水泥基获得更大的界面粘结强度，且抗压抗折强度高，能有效阻碍钢纤维的锈蚀，同时最大拔出力与拔出能耗均得到提高。
Polymer modified cement-based patching material and preparation method thereof
The invention relates to the field of building materials, and discloses a polymer modified cement-based repairing material and a preparation method thereof. The polymer modified cement-based repairing material is prepared from the following raw materials in parts by weight: 15 to 30 parts of waterborne epoxy resin, 3 to 8 parts of curing agent, 100 to 120 parts of cement, 20 to 35 parts of fly ash, 15 to 25 parts of modified steel fiber, 200 to 300 parts of fine aggregate, 5 to 15 parts of modified polyvinyl alcohol, 0.3 to 1 part of water reducing agent, 0.2 to 0.5 part of defoaming agent and 25 to 50 parts of deionized water. The modified steel fibers are prepared by modifying silicon dioxide-loaded steel fibers with polyethyleneimine and then grafting carboxylated metakaolin; by adding the modified steel fibers and the modified polyvinyl alcohol, a cement base obtains higher interface bonding strength, the compressive strength and the breaking strength are high, corrosion of the steel fibers can be effectively hindered, and meanwhile, the maximum pullout force and pullout energy consumption are both improved.
本发明涉及建筑材料领域，公开了一种聚合物改性水泥基修补材料及其制备方法，该聚合物改性水泥基修补材料包括以下重量份原料：水性环氧树脂15～30份、固化剂3～8份、水泥100～120份、粉煤灰20～35份、改性钢纤维15～25份、细骨料200～300份、改性聚乙烯醇5～15份、减水剂0.3～1份、消泡剂0.2～0.5份、去离子水25～50份；改性钢纤维为利用聚乙烯亚胺改性负载二氧化硅钢纤维后接枝羧基化偏高岭土制备得到的改性钢纤维；改性聚乙烯醇为羧基化聚乙烯醇，本发明通过改性钢纤维和改性聚乙烯醇的添加，使得水泥基获得更大的界面粘结强度，且抗压抗折强度高，能有效阻碍钢纤维的锈蚀，同时最大拔出力与拔出能耗均得到提高。
Polymer modified cement-based patching material and preparation method thereof
一种聚合物改性水泥基修补材料及其制备方法
MENG KE (author) / YANG LU (author) / ZHAO SHUZHAN (author) / WU JIANFENG (author) / ZHANG YAN (author)
2024-08-23
Patent
Electronic Resource
Chinese
IPC:
C04B
Kalk
,
LIME
Epoxy resin emulsion modified cement-based patching material and preparation material thereof
| European Patent Office | 2015
Modified cement mortar pavement patching material and pavement patching construction method
| European Patent Office | 2015
Cement concrete pavement patching material, preparation process and pavement patching method
| European Patent Office | 2021
| European Patent Office | 2023