Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
C35 radiation protection concrete and preparation method thereof
The invention relates to the technical field of concrete, and particularly discloses C35 radiation protection concrete and a preparation method thereof. The C35 radiation protection concrete comprises the following components in parts by mass: 250-260 parts of cement; 130 to 140 parts of water; 55 to 65 parts of fly ash; 0-2 parts of mineral powder; 15-25 parts of a water reducing agent; 1400 to 1500 parts of fine aggregate; 2000 to 2200 parts of coarse aggregate; 25-35 parts of an expanding agent; the water reducing agent at least comprises sodium gluconate, sodium methylene dinaphthalene sulfonate and casein. The preparation method comprises the following steps: 1) mixing the fly ash, the water reducing agent and the water, uniformly stirring, controlling the temperature, and stirring to obtain mixed slurry; 2) uniformly mixing cement, mineral powder, fine aggregate and coarse aggregate, uniformly mixing with the mixed slurry and an expanding agent, stirring for reaction, and then pouring and vibrating; and 3) after pouring, curing in a humid environment at 5-25 DEG C to obtain the C35 radiation-proof concrete. The C35 radiation-proof concrete disclosed by the invention is relatively high in density grade, good in homogeneity, good in flowability, good in pumping performance and relatively few in impression flaws.
本申请涉及混凝土技术领域，具体公开了一种C35防辐射混凝土及其制备方法。C35防辐射混凝土包括以下质量份数的组分：水泥250～260份；水130～140份；粉煤灰55～65份；矿粉0～2份；减水剂15～25份；细骨料1400～1500份；粗骨料2000～2200份；膨胀剂25～35份；减水剂至少包括葡萄糖酸钠、亚甲基二萘磺酸钠、干酪素。其制备方法包括以下步骤：步骤1)将粉煤灰、减水剂与水混合，搅拌均匀，控温，搅拌，得到混合浆液；步骤2)将水泥、矿粉、细骨料、粗骨料混合均匀，与混合浆液以及膨胀剂混合均匀，搅拌反应，然后浇注，振捣；步骤3)浇注后在5‑25℃的潮湿环境中养护，即得C35防辐射混凝土。本申请的C35防辐射混凝土密度等级较高、匀质性良好，流动性好、有良好的泵送性能，而且观感瑕疵较少。
C35 radiation protection concrete and preparation method thereof
The invention relates to the technical field of concrete, and particularly discloses C35 radiation protection concrete and a preparation method thereof. The C35 radiation protection concrete comprises the following components in parts by mass: 250-260 parts of cement; 130 to 140 parts of water; 55 to 65 parts of fly ash; 0-2 parts of mineral powder; 15-25 parts of a water reducing agent; 1400 to 1500 parts of fine aggregate; 2000 to 2200 parts of coarse aggregate; 25-35 parts of an expanding agent; the water reducing agent at least comprises sodium gluconate, sodium methylene dinaphthalene sulfonate and casein. The preparation method comprises the following steps: 1) mixing the fly ash, the water reducing agent and the water, uniformly stirring, controlling the temperature, and stirring to obtain mixed slurry; 2) uniformly mixing cement, mineral powder, fine aggregate and coarse aggregate, uniformly mixing with the mixed slurry and an expanding agent, stirring for reaction, and then pouring and vibrating; and 3) after pouring, curing in a humid environment at 5-25 DEG C to obtain the C35 radiation-proof concrete. The C35 radiation-proof concrete disclosed by the invention is relatively high in density grade, good in homogeneity, good in flowability, good in pumping performance and relatively few in impression flaws.
本申请涉及混凝土技术领域，具体公开了一种C35防辐射混凝土及其制备方法。C35防辐射混凝土包括以下质量份数的组分：水泥250～260份；水130～140份；粉煤灰55～65份；矿粉0～2份；减水剂15～25份；细骨料1400～1500份；粗骨料2000～2200份；膨胀剂25～35份；减水剂至少包括葡萄糖酸钠、亚甲基二萘磺酸钠、干酪素。其制备方法包括以下步骤：步骤1)将粉煤灰、减水剂与水混合，搅拌均匀，控温，搅拌，得到混合浆液；步骤2)将水泥、矿粉、细骨料、粗骨料混合均匀，与混合浆液以及膨胀剂混合均匀，搅拌反应，然后浇注，振捣；步骤3)浇注后在5‑25℃的潮湿环境中养护，即得C35防辐射混凝土。本申请的C35防辐射混凝土密度等级较高、匀质性良好，流动性好、有良好的泵送性能，而且观感瑕疵较少。
C35 radiation protection concrete and preparation method thereof
一种C35防辐射混凝土及其制备方法
PENG QIAOJUN (Autor:in) / LIN XINJIE (Autor:in) / CHEN HAITONG (Autor:in)
04.11.2022
Patent
Elektronische Ressource
Chinesisch
IPC:
C04B
Kalk
,
LIME
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