Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Durable concrete and preparation method thereof
The invention relates to the technical field of concrete, in particular to durable concrete and a preparation method thereof. The durable concrete is prepared from the following raw materials in parts by weight: cement; medium sand; crushing stones; a fly ash-metakaolin-based geopolymer; an additive; and Mg-Al hydrotalcite. The fly ash-metakaolin-based geopolymer is prepared by the following steps: stirring and mixing metakaolin, fly ash, an alkali activator and a second aqueous solution, and then carrying out injection molding, maintenance and demolding. The preparation method comprises the following steps: mixing the medium sand, the fine sand and the like to obtain a mixture C; adding a fly ash-metakaolin-based geopolymer, Mg-Al hydrotalcite and the like into the mixture C to obtain a mixture D; adding cement, additives and the like into the mixture D, and conducting stirring and mixing. The fly ash-metakaolin-based geopolymer and Mg-Al hydrotalcite are compounded in concrete, ion exchange with anions in the concrete is carried out, and the advantage of improving the durability of the concrete is achieved.
本申请涉及混凝土技术领域，更具体地说，它涉及一种耐久性混凝土及其制备方法。耐久性混凝土包含以下重量份的原料制成：水泥；中砂；碎石；粉煤灰‑偏高岭土基地聚合物；外加剂；Mg‑Al水滑石；粉煤灰‑偏高岭土基地聚合物由以下步骤制成：将偏高领土、粉煤灰、碱激发剂和第二水剂搅拌混合后，注模成型，养护，脱模。其制备方法为：将中砂、细砂等混合，得到混合物C；将粉煤灰‑偏高岭土基地聚合物和Mg‑Al水滑石等加入混合物C中，得到混合物D；向混合物D中加入水泥、外加剂等，搅拌混合。本申请粉煤灰‑偏高岭土基地聚合物与Mg‑Al水滑石复配与混凝土中，与混凝土中的阴离子发生离子交换，具有提高混凝土耐久性的优点。
Durable concrete and preparation method thereof
The invention relates to the technical field of concrete, in particular to durable concrete and a preparation method thereof. The durable concrete is prepared from the following raw materials in parts by weight: cement; medium sand; crushing stones; a fly ash-metakaolin-based geopolymer; an additive; and Mg-Al hydrotalcite. The fly ash-metakaolin-based geopolymer is prepared by the following steps: stirring and mixing metakaolin, fly ash, an alkali activator and a second aqueous solution, and then carrying out injection molding, maintenance and demolding. The preparation method comprises the following steps: mixing the medium sand, the fine sand and the like to obtain a mixture C; adding a fly ash-metakaolin-based geopolymer, Mg-Al hydrotalcite and the like into the mixture C to obtain a mixture D; adding cement, additives and the like into the mixture D, and conducting stirring and mixing. The fly ash-metakaolin-based geopolymer and Mg-Al hydrotalcite are compounded in concrete, ion exchange with anions in the concrete is carried out, and the advantage of improving the durability of the concrete is achieved.
本申请涉及混凝土技术领域，更具体地说，它涉及一种耐久性混凝土及其制备方法。耐久性混凝土包含以下重量份的原料制成：水泥；中砂；碎石；粉煤灰‑偏高岭土基地聚合物；外加剂；Mg‑Al水滑石；粉煤灰‑偏高岭土基地聚合物由以下步骤制成：将偏高领土、粉煤灰、碱激发剂和第二水剂搅拌混合后，注模成型，养护，脱模。其制备方法为：将中砂、细砂等混合，得到混合物C；将粉煤灰‑偏高岭土基地聚合物和Mg‑Al水滑石等加入混合物C中，得到混合物D；向混合物D中加入水泥、外加剂等，搅拌混合。本申请粉煤灰‑偏高岭土基地聚合物与Mg‑Al水滑石复配与混凝土中，与混凝土中的阴离子发生离子交换，具有提高混凝土耐久性的优点。
Durable concrete and preparation method thereof
一种耐久性混凝土及其制备方法
FENG YUMEI (Autor:in)
20.07.2021
Patent
Elektronische Ressource
Chinesisch
IPC:
C04B
Kalk
,
LIME
Durable recycled concrete and preparation method thereof
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