Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
High-impermeability filling concrete for bridge comb plate extension type shrinkage joint
The invention discloses high-impermeability filling concrete for bridge comb plate extension type shrinkage joints, mainly relates to the technical field of concrete, and specifically comprises the following components in parts by weight: 600-650 parts of Portland cement, 300-350 parts of coarse aggregate, 200-250 parts of fine aggregate, 150-250 parts of water, 6-12 parts of water reducing agent and 20-40 parts of modified polyvinyl alcohol fiber. Wherein the fine aggregate is a mixture of one or more of perlite, pearlife and quartz sand, the coarse aggregate is a mixture of one or more of ceramsite, gravel and gravel, and the modified polyvinyl alcohol fiber comprises polyvinyl alcohol fiber and modified zeolite microspheres. Compared with the prior art, the prepared high-impermeability filled concrete is more compact in structure, the water absorption performance of the concrete and the permeability of chloride ions are reduced, and the impermeability and durability of the concrete are improved.
本发明公开了桥梁梳齿板伸型缩缝的高抗渗填充混凝土，主要涉及混凝土技术领域，包括硅酸盐水泥、粗骨料、细骨料、水、减水剂、改性聚乙烯醇纤维，具体包括600‑650份硅酸盐水泥、300‑350份粗骨料、200‑250份细骨料、150‑250份水、6‑12份减水剂、20‑40份改性聚乙烯醇纤维。其中细骨料为珍珠岩、珠光砂、石英砂中的一种或多种混合，粗骨料为陶粒、碎石、砾石中的一种或多种混合，改性聚乙烯醇纤维包含有聚乙烯醇纤维、改性沸石微球。与现有技术相比，本发明制备的高抗渗填充混凝土结构更加致密，减小混凝土的吸水性能和氯离子的渗透性，提高其抗渗性和耐久性。
High-impermeability filling concrete for bridge comb plate extension type shrinkage joint
The invention discloses high-impermeability filling concrete for bridge comb plate extension type shrinkage joints, mainly relates to the technical field of concrete, and specifically comprises the following components in parts by weight: 600-650 parts of Portland cement, 300-350 parts of coarse aggregate, 200-250 parts of fine aggregate, 150-250 parts of water, 6-12 parts of water reducing agent and 20-40 parts of modified polyvinyl alcohol fiber. Wherein the fine aggregate is a mixture of one or more of perlite, pearlife and quartz sand, the coarse aggregate is a mixture of one or more of ceramsite, gravel and gravel, and the modified polyvinyl alcohol fiber comprises polyvinyl alcohol fiber and modified zeolite microspheres. Compared with the prior art, the prepared high-impermeability filled concrete is more compact in structure, the water absorption performance of the concrete and the permeability of chloride ions are reduced, and the impermeability and durability of the concrete are improved.
本发明公开了桥梁梳齿板伸型缩缝的高抗渗填充混凝土，主要涉及混凝土技术领域，包括硅酸盐水泥、粗骨料、细骨料、水、减水剂、改性聚乙烯醇纤维，具体包括600‑650份硅酸盐水泥、300‑350份粗骨料、200‑250份细骨料、150‑250份水、6‑12份减水剂、20‑40份改性聚乙烯醇纤维。其中细骨料为珍珠岩、珠光砂、石英砂中的一种或多种混合，粗骨料为陶粒、碎石、砾石中的一种或多种混合，改性聚乙烯醇纤维包含有聚乙烯醇纤维、改性沸石微球。与现有技术相比，本发明制备的高抗渗填充混凝土结构更加致密，减小混凝土的吸水性能和氯离子的渗透性，提高其抗渗性和耐久性。
High-impermeability filling concrete for bridge comb plate extension type shrinkage joint
桥梁梳齿板伸型缩缝的高抗渗填充混凝土
LI DONG (Autor:in) / LI SHUANGXIN (Autor:in) / SHI ZHENWU (Autor:in)
20.02.2024
Patent
Elektronische Ressource
Chinesisch
IPC:
C04B
Kalk
,
LIME
High-toughness comb plate expansion joint filling concrete
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Water impermeability of concrete
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Impermeability of concrete construction
| Engineering Index Backfile | 1926