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Calcined stone alkali-activated light high-strength concrete as well as preparation and construction methods thereof
The invention discloses calcined stone alkali-activated light high-strength concrete and a preparation and construction method thereof. The concrete is prepared from the following raw material components in parts by weight: 100 parts of slag, 15-20 parts of an alkali activator, 30-100 parts of standard sand, 5-8 parts of a water reducing agent, 25-50 parts of water and 100-200 parts of calcined stone. The preparation method comprises the following steps: fully stirring and mixing an alkali activator prepared from NaOH and Na2SiO3. 9H2O according to a mass ratio of 1: (9-10), weighing slag and standard sand according to a mixing ratio of concrete raw material components, uniformly mixing and stirring, slowly adding the prepared alkali activator solution, uniformly stirring, slowly adding a water reducing agent and water in the stirring process to form thick concrete liquid, and uniformly stirring to obtain the concrete. Continuously adding the calcined stone and stirring to obtain the light high-strength concrete. The mixed concrete is used for conducting pouring filling and curing construction on a formwork; by adopting the glassy sintered stone with a porous structure in the slag, the scheme is low in cost, the problem of upward floating of the lightweight aggregate is solved, and the uniformity of the concrete is improved; the concrete has the advantages of quick setting and hardening, high strength, high durability, high corrosion resistance and the like.
一种烧结石碱激发轻质高强混凝土及其制备、施工方法，该混凝土按重量份数计原料组分如下：矿渣100份、碱激发剂15‑20份、标准砂30‑100份、减水剂5‑8份，水25‑50份，烧结石100‑200份；将NaOH和Na2SiO3·9H2O按质量比1:9‑10配制的碱激发剂充分搅拌混合，按混凝土原料组分配合比称量矿渣和标准沙，混合搅拌均匀，再将配置好的碱激发剂溶液缓慢加入搅拌均匀，搅拌的过程中缓慢加入减水剂和水，形成粘稠混凝土液，继续加入烧结石搅拌后制得轻质高强混凝土；将拌合好的混凝土对模板进行灌注充填及养护施工；采用矿渣中具有多孔结构并呈玻璃状的烧结石，方案成本低廉，解决了轻质骨料上浮问题，提高了混凝土均匀性；混凝土具有凝结硬化快、强度高、耐久性和抗腐蚀性高等优点。
Calcined stone alkali-activated light high-strength concrete as well as preparation and construction methods thereof
The invention discloses calcined stone alkali-activated light high-strength concrete and a preparation and construction method thereof. The concrete is prepared from the following raw material components in parts by weight: 100 parts of slag, 15-20 parts of an alkali activator, 30-100 parts of standard sand, 5-8 parts of a water reducing agent, 25-50 parts of water and 100-200 parts of calcined stone. The preparation method comprises the following steps: fully stirring and mixing an alkali activator prepared from NaOH and Na2SiO3. 9H2O according to a mass ratio of 1: (9-10), weighing slag and standard sand according to a mixing ratio of concrete raw material components, uniformly mixing and stirring, slowly adding the prepared alkali activator solution, uniformly stirring, slowly adding a water reducing agent and water in the stirring process to form thick concrete liquid, and uniformly stirring to obtain the concrete. Continuously adding the calcined stone and stirring to obtain the light high-strength concrete. The mixed concrete is used for conducting pouring filling and curing construction on a formwork; by adopting the glassy sintered stone with a porous structure in the slag, the scheme is low in cost, the problem of upward floating of the lightweight aggregate is solved, and the uniformity of the concrete is improved; the concrete has the advantages of quick setting and hardening, high strength, high durability, high corrosion resistance and the like.
一种烧结石碱激发轻质高强混凝土及其制备、施工方法，该混凝土按重量份数计原料组分如下：矿渣100份、碱激发剂15‑20份、标准砂30‑100份、减水剂5‑8份，水25‑50份，烧结石100‑200份；将NaOH和Na2SiO3·9H2O按质量比1:9‑10配制的碱激发剂充分搅拌混合，按混凝土原料组分配合比称量矿渣和标准沙，混合搅拌均匀，再将配置好的碱激发剂溶液缓慢加入搅拌均匀，搅拌的过程中缓慢加入减水剂和水，形成粘稠混凝土液，继续加入烧结石搅拌后制得轻质高强混凝土；将拌合好的混凝土对模板进行灌注充填及养护施工；采用矿渣中具有多孔结构并呈玻璃状的烧结石，方案成本低廉，解决了轻质骨料上浮问题，提高了混凝土均匀性；混凝土具有凝结硬化快、强度高、耐久性和抗腐蚀性高等优点。
Calcined stone alkali-activated light high-strength concrete as well as preparation and construction methods thereof
一种烧结石碱激发轻质高强混凝土及其制备、施工方法
2023-05-26
Patent
Electronic Resource
Chinese
| European Patent Office | 2024
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