A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
CEMENT COMPOSITION AND CURED PRODUCT THEREOF
To provide a cement composition for neutron shielding which has high neutron shielding performance and is suitable for spraying construction and a cured product thereof.SOLUTION: A cement composition containing binder, water, coarse aggregate, fine aggregate, and special admixture, in which the coarse aggregate contains crushed olivine, and the fine aggregate contains crushed olivine sand. In cases where both the special admixture and fine aggregate contain colemanite, or in cases where only the special admixture contains colemanite, the content of colemanite is between 10 kg and 115 kg for 1 m3 of the cement composition. The total volume of crushed olivine and crushed olivine sand is between 500 L and 700 L for 1 m3 of cement composition, in cases where both special admixture and fine aggregate do not contain colemanite.SELECTED DRAWING: Figure 1
【課題】中性子の遮蔽性能が高く、吹付施工にも適した中性子遮蔽用セメント組成物およびその硬化物を提供すること。【解決手段】結合材、水、粗骨材、細骨材および特殊混和材を含むセメント組成物であって、粗骨材はカンラン岩砕石を含み、細骨材はカンラン岩砕砂を含み、特殊混和材および細骨材が灰ホウ石を含むか、あるいは特殊混和材のみが灰ホウ石を含む場合には、灰ホウ石の含有量はセメント組成物１ｍ３に対して１０ｋｇ以上１１５ｋｇ未満の範囲であると共に、特殊混和材および細骨材がともに灰ホウ石を含まない場合には、カンラン岩砕石とカンラン岩砕砂の合計容積がセメント組成物１ｍ３に対して５００Ｌ以上７００Ｌ以下の範囲であるセメント組成物である。【選択図】図１
CEMENT COMPOSITION AND CURED PRODUCT THEREOF
To provide a cement composition for neutron shielding which has high neutron shielding performance and is suitable for spraying construction and a cured product thereof.SOLUTION: A cement composition containing binder, water, coarse aggregate, fine aggregate, and special admixture, in which the coarse aggregate contains crushed olivine, and the fine aggregate contains crushed olivine sand. In cases where both the special admixture and fine aggregate contain colemanite, or in cases where only the special admixture contains colemanite, the content of colemanite is between 10 kg and 115 kg for 1 m3 of the cement composition. The total volume of crushed olivine and crushed olivine sand is between 500 L and 700 L for 1 m3 of cement composition, in cases where both special admixture and fine aggregate do not contain colemanite.SELECTED DRAWING: Figure 1
【課題】中性子の遮蔽性能が高く、吹付施工にも適した中性子遮蔽用セメント組成物およびその硬化物を提供すること。【解決手段】結合材、水、粗骨材、細骨材および特殊混和材を含むセメント組成物であって、粗骨材はカンラン岩砕石を含み、細骨材はカンラン岩砕砂を含み、特殊混和材および細骨材が灰ホウ石を含むか、あるいは特殊混和材のみが灰ホウ石を含む場合には、灰ホウ石の含有量はセメント組成物１ｍ３に対して１０ｋｇ以上１１５ｋｇ未満の範囲であると共に、特殊混和材および細骨材がともに灰ホウ石を含まない場合には、カンラン岩砕石とカンラン岩砕砂の合計容積がセメント組成物１ｍ３に対して５００Ｌ以上７００Ｌ以下の範囲であるセメント組成物である。【選択図】図１
CEMENT COMPOSITION AND CURED PRODUCT THEREOF
セメント組成物およびその硬化物
OKUNO KOICHI (author) / TANAKA SEIICHIRO (author) / TAKAGI RYOICHI (author) / SAITO ATSUSHI (author)
2022-01-18
Patent
Electronic Resource
Japanese