Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Low-resilience impervious sprayed concrete admixture and preparation method thereof
The invention relates to a low-resilience impervious sprayed concrete admixture and a preparation method thereof. The low-resilience impervious sprayed concrete admixture is prepared from the following components in percentage by mass: 30.0 to 45.0 percent of water-quenched slag powder, 15.0 to 30.0 percent of red mud powder, 10.0 to 20.0 percent of aluminum ash powder, 5.0 to 10.0 percent of aluminate cement clinker powder, 5.0 to 10.0 percent of magnesium oxide expanding agent, 2.0 to 10.0 percent of calcium sulfate whisker, 2.0 to 5.0 percent of nano aluminum oxide sol powder, 1.0 to 5.0 percent of waterproof agent and 0.0 to 1.0 percent of conditioning agent. By means of the composite design of all the materials, the high activity is guaranteed, meanwhile, the reaction with an intermediate-speed setting agent in concrete can be further promoted, the setting time of the sprayed concrete can be remarkably shortened, the early strength of the sprayed concrete can be remarkably improved, and therefore the rebound rate of the sprayed concrete is reduced.
本发明涉及一种低回弹抗渗喷射混凝土掺合料及其制备方法。所述低回弹抗渗喷射混凝土掺合料按质量百分含量计包括如下组分组成：水淬矿渣粉30.0％～45.0％、赤泥粉15.0％～30.0％、铝灰粉10.0％～20.0％、铝酸盐水泥熟料粉5.0％～10.0％、氧化镁膨胀剂5.0％～10.0％、硫酸钙晶须2.0％～10.0％、纳米氧化铝溶胶粉2.0％～5.0％、防水剂1.0％～5.0％和调节剂0.0～1.0％。本发明利用上述的各材料复合设计，在保证自身具有较高活性的同时，还能进一步促进与混凝土中速凝剂反应，可显著缩短喷射混凝土凝结时间和提高喷射混凝土早期强度，从而降低喷射混凝土回弹率。
Low-resilience impervious sprayed concrete admixture and preparation method thereof
The invention relates to a low-resilience impervious sprayed concrete admixture and a preparation method thereof. The low-resilience impervious sprayed concrete admixture is prepared from the following components in percentage by mass: 30.0 to 45.0 percent of water-quenched slag powder, 15.0 to 30.0 percent of red mud powder, 10.0 to 20.0 percent of aluminum ash powder, 5.0 to 10.0 percent of aluminate cement clinker powder, 5.0 to 10.0 percent of magnesium oxide expanding agent, 2.0 to 10.0 percent of calcium sulfate whisker, 2.0 to 5.0 percent of nano aluminum oxide sol powder, 1.0 to 5.0 percent of waterproof agent and 0.0 to 1.0 percent of conditioning agent. By means of the composite design of all the materials, the high activity is guaranteed, meanwhile, the reaction with an intermediate-speed setting agent in concrete can be further promoted, the setting time of the sprayed concrete can be remarkably shortened, the early strength of the sprayed concrete can be remarkably improved, and therefore the rebound rate of the sprayed concrete is reduced.
本发明涉及一种低回弹抗渗喷射混凝土掺合料及其制备方法。所述低回弹抗渗喷射混凝土掺合料按质量百分含量计包括如下组分组成：水淬矿渣粉30.0％～45.0％、赤泥粉15.0％～30.0％、铝灰粉10.0％～20.0％、铝酸盐水泥熟料粉5.0％～10.0％、氧化镁膨胀剂5.0％～10.0％、硫酸钙晶须2.0％～10.0％、纳米氧化铝溶胶粉2.0％～5.0％、防水剂1.0％～5.0％和调节剂0.0～1.0％。本发明利用上述的各材料复合设计，在保证自身具有较高活性的同时，还能进一步促进与混凝土中速凝剂反应，可显著缩短喷射混凝土凝结时间和提高喷射混凝土早期强度，从而降低喷射混凝土回弹率。
Low-resilience impervious sprayed concrete admixture and preparation method thereof
一种低回弹抗渗喷射混凝土掺合料及其制备方法
LI SHUNKAI (Autor:in) / CHEN RONGHUI (Autor:in) / LI YULIN (Autor:in) / QIN MAOTING (Autor:in) / LI XIAOMIN (Autor:in) / DENG CHONG (Autor:in)
10.12.2024
Patent
Elektronische Ressource
Chinesisch
IPC:
C04B
Kalk
,
LIME
Preparation method of impervious admixture for concrete mortar
| Europäisches Patentamt | 2023
Functional admixture for sprayed concrete, preparation method and sprayed concrete
| Europäisches Patentamt | 2024
Composite admixture, preparation method and application thereof, and tunnel sprayed concrete
| Europäisches Patentamt | 2023
| Europäisches Patentamt | 2024