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A platform for research: civil engineering, architecture and urbanism
Radiation-proof concrete and preparation method thereof
The invention relates to radiation-proof concrete and a preparation method thereof. The concrete comprises water, cement, natural sand, broken stone, serpentine, lead slag, a regenerated micro powder admixture and a water reducing agent, the use amount of a concrete gel material is 380-450 Kg/m < 3 >, and the water-binder ratio range is 0.30-0.45; and the mixing amount of the water reducing agent is 0.8%-1.5%. The preparation method comprises the following steps: firstly, putting the regenerated micro powder and the exciting agent into a ball mill, mixing and grinding until the specific surface area is greater than 300-450m < 2 >/kg to prepare the regenerated micro powder admixture; and mixing the weighed water, cement, natural sand, gravel and the regenerated micro-powder admixture, adding the water reducing agent in the mixing process, and uniformly mixing to obtain the radiation-proof concrete. The serpentine is used as coarse and fine aggregate, the lead slag is used as coarse aggregate to partially replace natural sandstone aggregate, and the regenerated micro powder is used as an admixture, so that the strength and compactness of the concrete are improved, the linear attenuation coefficient of rays is increased, and meanwhile, the cement consumption is reduced.
本发明涉及一种防辐射混凝土及其制备方法。该混凝土包括：水、水泥、天然砂、碎石、蛇纹石、铅渣、再生微粉掺合料、减水剂，混凝土凝胶材料用量：380～450Kg/m3，水胶比范围：0.30～0.45；减水剂掺量：0.8％～1.5％。制备时，先将再生微粉和激发剂放入球磨机，混合研磨至比表面积大于300～450m2/kg，制得再生微粉掺合料；再将称量好的水、水泥、天然砂、碎石、再生微粉掺合料拌和，在搅拌过程中掺入减水剂，并拌合均匀，制得防辐射混凝土。蛇纹石作为粗细骨料、铅渣作为粗骨料部分取代天然砂石骨料，再生微粉作为掺合料，提高了混凝土强度和密实度，提升了对射线的线性衰减系数，同时降低水泥用量。
Radiation-proof concrete and preparation method thereof
The invention relates to radiation-proof concrete and a preparation method thereof. The concrete comprises water, cement, natural sand, broken stone, serpentine, lead slag, a regenerated micro powder admixture and a water reducing agent, the use amount of a concrete gel material is 380-450 Kg/m < 3 >, and the water-binder ratio range is 0.30-0.45; and the mixing amount of the water reducing agent is 0.8%-1.5%. The preparation method comprises the following steps: firstly, putting the regenerated micro powder and the exciting agent into a ball mill, mixing and grinding until the specific surface area is greater than 300-450m < 2 >/kg to prepare the regenerated micro powder admixture; and mixing the weighed water, cement, natural sand, gravel and the regenerated micro-powder admixture, adding the water reducing agent in the mixing process, and uniformly mixing to obtain the radiation-proof concrete. The serpentine is used as coarse and fine aggregate, the lead slag is used as coarse aggregate to partially replace natural sandstone aggregate, and the regenerated micro powder is used as an admixture, so that the strength and compactness of the concrete are improved, the linear attenuation coefficient of rays is increased, and meanwhile, the cement consumption is reduced.
本发明涉及一种防辐射混凝土及其制备方法。该混凝土包括：水、水泥、天然砂、碎石、蛇纹石、铅渣、再生微粉掺合料、减水剂，混凝土凝胶材料用量：380～450Kg/m3，水胶比范围：0.30～0.45；减水剂掺量：0.8％～1.5％。制备时，先将再生微粉和激发剂放入球磨机，混合研磨至比表面积大于300～450m2/kg，制得再生微粉掺合料；再将称量好的水、水泥、天然砂、碎石、再生微粉掺合料拌和，在搅拌过程中掺入减水剂，并拌合均匀，制得防辐射混凝土。蛇纹石作为粗细骨料、铅渣作为粗骨料部分取代天然砂石骨料，再生微粉作为掺合料，提高了混凝土强度和密实度，提升了对射线的线性衰减系数，同时降低水泥用量。
Radiation-proof concrete and preparation method thereof
一种防辐射混凝土及其制备方法
ZUO JUNQING (author) / FANG TINGCHEN (author) / CHEN JIANDA (author) / CAO WENJIE (author) / CHEN YUANHONG (author) / SHU JIAYING (author) / WANG JIAWEI (author)
2024-06-14
Patent
Electronic Resource
Chinese
IPC:
C04B
Kalk
,
LIME
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