Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Hollow slab prepared from concrete with ultra-high performance and preparation method of hollow slab
The invention provides a hollow slab prepared from concrete with ultra-high performance and a preparation method of the hollow slab, belonging to the technical field of concrete members. The hollow slab prepared from the concrete with ultra-high performance is of a totally-closed structure, the outer wall of the hollow slab is formed by the concrete with ultra-high performance, and the interior of the hollow slab is a foam board. The concrete with ultra-high performance comprises the following components in parts by weight: 25 parts of silicate 42.5 R cement, 5 parts of silica fume, 5 parts of fly ash microspheres, 22 parts of medium sand, 25 parts of fine sand, 5 parts of steel fibers, 6 parts of water, 0.7 part of a water reducing agent, 0.8 part of an anti-cracking toughening agent and 0.25 part of a defoaming agent. The hollow slab provided by the invention has the characteristics of high strength, good durability and light weight. The result of an embodiment shows that the breaking strength of the hollow slab is 19.2 MPa, the splitting tensile strength of the hollow slab is 15.6 MPa, and the weight reduction rate of the hollow slab exceeds 60% compared with a solid concrete slab.
本发明提供了一种超高性能混凝土空心板及其制备方法，属于混凝土构件技术领域。本发明提供地超高性能混凝土空心板为全封闭结构，所述超高性能混凝土空心板的外壁由超高性能混凝土成型得到，内部为泡沫板；所述超高性能混凝土包含以下重量份的组分：硅酸盐42.5R水泥为25份；硅灰为5份；粉煤灰微珠为5份；中砂为为22份；细砂为25份；钢纤维为5份；水为为6份；减水剂为0.7份；抗裂增韧剂为0.8份；消泡剂为0.25份。本发明提供的空心板具有强度高、耐久性好、重量轻的特点。实施例结果表明，本发明的空心板的抗折强度为19.2MPa，劈裂抗拉强度为15.6MPa，与实心混凝土板材相比减重率超过60％。
Hollow slab prepared from concrete with ultra-high performance and preparation method of hollow slab
The invention provides a hollow slab prepared from concrete with ultra-high performance and a preparation method of the hollow slab, belonging to the technical field of concrete members. The hollow slab prepared from the concrete with ultra-high performance is of a totally-closed structure, the outer wall of the hollow slab is formed by the concrete with ultra-high performance, and the interior of the hollow slab is a foam board. The concrete with ultra-high performance comprises the following components in parts by weight: 25 parts of silicate 42.5 R cement, 5 parts of silica fume, 5 parts of fly ash microspheres, 22 parts of medium sand, 25 parts of fine sand, 5 parts of steel fibers, 6 parts of water, 0.7 part of a water reducing agent, 0.8 part of an anti-cracking toughening agent and 0.25 part of a defoaming agent. The hollow slab provided by the invention has the characteristics of high strength, good durability and light weight. The result of an embodiment shows that the breaking strength of the hollow slab is 19.2 MPa, the splitting tensile strength of the hollow slab is 15.6 MPa, and the weight reduction rate of the hollow slab exceeds 60% compared with a solid concrete slab.
本发明提供了一种超高性能混凝土空心板及其制备方法，属于混凝土构件技术领域。本发明提供地超高性能混凝土空心板为全封闭结构，所述超高性能混凝土空心板的外壁由超高性能混凝土成型得到，内部为泡沫板；所述超高性能混凝土包含以下重量份的组分：硅酸盐42.5R水泥为25份；硅灰为5份；粉煤灰微珠为5份；中砂为为22份；细砂为25份；钢纤维为5份；水为为6份；减水剂为0.7份；抗裂增韧剂为0.8份；消泡剂为0.25份。本发明提供的空心板具有强度高、耐久性好、重量轻的特点。实施例结果表明，本发明的空心板的抗折强度为19.2MPa，劈裂抗拉强度为15.6MPa，与实心混凝土板材相比减重率超过60％。
Hollow slab prepared from concrete with ultra-high performance and preparation method of hollow slab
一种超高性能混凝土空心板及其制备方法
XIA CHUNLEI (Autor:in) / LI YURONG (Autor:in) / LI SHIYUAN (Autor:in) / REN CHENGCHUAN (Autor:in) / WANG GUANMING (Autor:in) / ZHANG LEI (Autor:in) / ZHAO ZHIGANG (Autor:in)
28.09.2021
Patent
Elektronische Ressource
Chinesisch
| Europäisches Patentamt | 2022