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Heavy-density anti-radiation concrete for hospital proton center protection and preparation method of heavy-density anti-radiation concrete
The invention discloses heavy-density anti-radiation concrete for hospital proton center protection and a preparation method thereof.The concrete is prepared from, by weight, 248-250 parts of cement, 142-177 parts of water, 1467-1488 parts of fine aggregate, 1928-1954 parts of coarse aggregate, 90-94 parts of admixture, 30 parts of special anti-cracking agent and 8.15-8.36 parts of admixture, P.O42.5 ordinary Portland cement is adopted as the cement, and the admixture is prepared from water, water and a special anti-cracking agent. The special anti-cracking agent adopts an efficient anti-cracking agent for HME-V concrete, the additive adopts a delayed coagulation type PCA-I polycarboxylic acid high-performance water reducing agent, the fine aggregate adopts magnetite sand, the coarse aggregate adopts magnetite ore, and the particle size of the magnetite ore is 5-25 mm. The anti-radiation concrete has the advantages that the anti-radiation performance and the working performance are improved, and the anti-radiation concrete with the 28d compressive strength larger than C30, the density larger than 3940 kg/m < 3 > and the slump (170-185) mm, the anti-radiation concrete with the Fe element content larger than 1800 kg/m < 3 > and the H element content larger than 18 kg/m < 3 > are prepared and used for meeting the anti-radiation requirement of a medical proton center.
本发明公开了一种医院质子中心防护用重密度防辐射混凝土及其制备方法，按重量份数计，混凝土包括以下组分：水泥248～250份、水142～177份、细骨料1467～1488份、粗骨料1928～1954份、掺合料90～94份、专用抗裂剂30份、外加剂8.15～8.36份,水泥采用P.O42.5普通硅酸盐水泥，专用抗裂剂采用HME‑V混凝土用高效抗裂剂，外加剂采用缓凝型PCA‑I聚羧酸高性能减水剂，细骨料采用磁铁矿砂，粗骨料采用磁铁矿石，磁铁矿石的粒径为5～25mm。本发明有提升防辐射和工作性能的优点，制备了28d抗压强度＞C30，密度＞3940kg/m3，坍落度(170～185)mm的防辐射混凝土，Fe元素含量＞1800kg/m3，H元素含量＞18kg/m3的防辐射混凝土，以用于满足医疗质子中心的防辐射需求。
Heavy-density anti-radiation concrete for hospital proton center protection and preparation method of heavy-density anti-radiation concrete
The invention discloses heavy-density anti-radiation concrete for hospital proton center protection and a preparation method thereof.The concrete is prepared from, by weight, 248-250 parts of cement, 142-177 parts of water, 1467-1488 parts of fine aggregate, 1928-1954 parts of coarse aggregate, 90-94 parts of admixture, 30 parts of special anti-cracking agent and 8.15-8.36 parts of admixture, P.O42.5 ordinary Portland cement is adopted as the cement, and the admixture is prepared from water, water and a special anti-cracking agent. The special anti-cracking agent adopts an efficient anti-cracking agent for HME-V concrete, the additive adopts a delayed coagulation type PCA-I polycarboxylic acid high-performance water reducing agent, the fine aggregate adopts magnetite sand, the coarse aggregate adopts magnetite ore, and the particle size of the magnetite ore is 5-25 mm. The anti-radiation concrete has the advantages that the anti-radiation performance and the working performance are improved, and the anti-radiation concrete with the 28d compressive strength larger than C30, the density larger than 3940 kg/m < 3 > and the slump (170-185) mm, the anti-radiation concrete with the Fe element content larger than 1800 kg/m < 3 > and the H element content larger than 18 kg/m < 3 > are prepared and used for meeting the anti-radiation requirement of a medical proton center.
本发明公开了一种医院质子中心防护用重密度防辐射混凝土及其制备方法，按重量份数计，混凝土包括以下组分：水泥248～250份、水142～177份、细骨料1467～1488份、粗骨料1928～1954份、掺合料90～94份、专用抗裂剂30份、外加剂8.15～8.36份,水泥采用P.O42.5普通硅酸盐水泥，专用抗裂剂采用HME‑V混凝土用高效抗裂剂，外加剂采用缓凝型PCA‑I聚羧酸高性能减水剂，细骨料采用磁铁矿砂，粗骨料采用磁铁矿石，磁铁矿石的粒径为5～25mm。本发明有提升防辐射和工作性能的优点，制备了28d抗压强度＞C30，密度＞3940kg/m3，坍落度(170～185)mm的防辐射混凝土，Fe元素含量＞1800kg/m3，H元素含量＞18kg/m3的防辐射混凝土，以用于满足医疗质子中心的防辐射需求。
Heavy-density anti-radiation concrete for hospital proton center protection and preparation method of heavy-density anti-radiation concrete
一种医院质子中心防护用重密度防辐射混凝土及其制备方法
YANG JIAHUA (author) / ZHOU JIEWANG (author) / ZHOU TING (author) / TANG HUI (author) / XIANG YU (author) / SHEN PEIFEI (author) / LIU CHANGPO (author) / WU YONG (author)
2022-07-05
Patent
Electronic Resource
Chinese
The Extra-Heavy Concrete for Protection from Radiation
| British Library Conference Proceedings | 2005