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Preparation method of alkali-activated pervious concrete
The invention discloses a preparation method of alkali-activated pervious concrete, which comprises the following steps: (1) preparing materials according to the proportion of production raw materialswhich comprise coarse aggregate, cement, a mineral admixture, a reinforcing agent, an alkali activator, a water reducing agent and water; (2) uniformly mixing and stirring the mineral admixture, thealkali activator and half of water, and standing for 10-120 minutes; and (3) adding the coarse aggregate, the cement, the reinforcing agent, the water reducing agent and the remaining water into the mixture obtained in the step (2), and uniformly stirring to obtain the alkali-activated pervious concrete. According to the invention, the mineral admixture in the concrete is firstly mixed with the alkali activator and then stood, and then is mixed with other raw materials, so that the strength of the obtained concrete is improved, the setting time of the concrete is ensured, and the setting timeis not reduced or is difficult to control due to the alkali activator.
本发明公开了一种碱激发透水混凝土的制备方法，包括以下步骤：(1)按照生产原料比例备料，所述生产原料包括粗骨料、水泥、矿物掺合料、增强剂、碱激发剂、减水剂和水；(2)将矿物掺合料、碱激发剂和一半的水混合搅拌均匀后，静置10‑120min；(3)向步骤(2)的混合物中加入粗骨料、水泥、增强剂、减水剂和剩余的水，搅拌均匀后，即得碱激发透水混凝土。本发明通过将混凝土中的矿物掺合料首先与碱激发剂混合后静置，然后再与其他原料混合，所得的混凝土在提高强度的同时，保证了混凝土的凝结时间，使凝结时间没有因碱激发剂而降低或难以控制。
Preparation method of alkali-activated pervious concrete
The invention discloses a preparation method of alkali-activated pervious concrete, which comprises the following steps: (1) preparing materials according to the proportion of production raw materialswhich comprise coarse aggregate, cement, a mineral admixture, a reinforcing agent, an alkali activator, a water reducing agent and water; (2) uniformly mixing and stirring the mineral admixture, thealkali activator and half of water, and standing for 10-120 minutes; and (3) adding the coarse aggregate, the cement, the reinforcing agent, the water reducing agent and the remaining water into the mixture obtained in the step (2), and uniformly stirring to obtain the alkali-activated pervious concrete. According to the invention, the mineral admixture in the concrete is firstly mixed with the alkali activator and then stood, and then is mixed with other raw materials, so that the strength of the obtained concrete is improved, the setting time of the concrete is ensured, and the setting timeis not reduced or is difficult to control due to the alkali activator.
本发明公开了一种碱激发透水混凝土的制备方法，包括以下步骤：(1)按照生产原料比例备料，所述生产原料包括粗骨料、水泥、矿物掺合料、增强剂、碱激发剂、减水剂和水；(2)将矿物掺合料、碱激发剂和一半的水混合搅拌均匀后，静置10‑120min；(3)向步骤(2)的混合物中加入粗骨料、水泥、增强剂、减水剂和剩余的水，搅拌均匀后，即得碱激发透水混凝土。本发明通过将混凝土中的矿物掺合料首先与碱激发剂混合后静置，然后再与其他原料混合，所得的混凝土在提高强度的同时，保证了混凝土的凝结时间，使凝结时间没有因碱激发剂而降低或难以控制。
Preparation method of alkali-activated pervious concrete
一种碱激发透水混凝土的制备方法
DENG YI (author) / HUANG JIABAO (author) / HE ZHIHENG (author) / WU TAO (author)
2020-10-23
Patent
Electronic Resource
Chinese
IPC:
C04B
Kalk
,
LIME
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