A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
HIGH-DURABLE FAST-CURING CONCRETE COMPOSITION
To provide a concrete composition capable of forming a high-durable fast-curing concrete composition for repairing that meets a standard on a static elasticity modulus for repairing a concrete floor slab and can obtain practical compressive strength at a material age of 3 hours.SOLUTION: This invention relates to a high-durable fast-curing concrete composition for repairing a concrete floor slab, comprising: a fast-curing mortar material comprising a portland cement, a fast-curing material, fine aggregate, and a setting modifier; and an artificial light-weight coarse aggregate comprising a baked material of an expansive shale, the coarse aggregate accounting for 20-52 mass% of the mortar material, wherein: the static elasticity modulus is 21.5-31.5 kN/mm; and the compressive strength at a material age of 3 hours is 24 N/mmor more.SELECTED DRAWING: None
【課題】コンクリート床版補修用の静弾性係数の規格に適合すると共に材齢３時間で実用圧縮強度が得られる高耐久速硬性の補修用コンクリートを形成することができるコンクリート組成物を提供する。【解決手段】ポルトランドセメント、速硬材、細骨材、および凝結調整剤よりなる速硬性モルタル材と、膨張性頁岩の焼成物からなる人工軽量粗骨材を該モルタル材に対して２０〜５２質量％含有することを特徴とし、静弾性係数２１.５〜３１.５kN/mm２、および材齢３時間の圧縮強度２４N/mm２以上のコンクリート床版補修用の高耐久速硬性コンクリート組成物。【選択図】なし
HIGH-DURABLE FAST-CURING CONCRETE COMPOSITION
To provide a concrete composition capable of forming a high-durable fast-curing concrete composition for repairing that meets a standard on a static elasticity modulus for repairing a concrete floor slab and can obtain practical compressive strength at a material age of 3 hours.SOLUTION: This invention relates to a high-durable fast-curing concrete composition for repairing a concrete floor slab, comprising: a fast-curing mortar material comprising a portland cement, a fast-curing material, fine aggregate, and a setting modifier; and an artificial light-weight coarse aggregate comprising a baked material of an expansive shale, the coarse aggregate accounting for 20-52 mass% of the mortar material, wherein: the static elasticity modulus is 21.5-31.5 kN/mm; and the compressive strength at a material age of 3 hours is 24 N/mmor more.SELECTED DRAWING: None
【課題】コンクリート床版補修用の静弾性係数の規格に適合すると共に材齢３時間で実用圧縮強度が得られる高耐久速硬性の補修用コンクリートを形成することができるコンクリート組成物を提供する。【解決手段】ポルトランドセメント、速硬材、細骨材、および凝結調整剤よりなる速硬性モルタル材と、膨張性頁岩の焼成物からなる人工軽量粗骨材を該モルタル材に対して２０〜５２質量％含有することを特徴とし、静弾性係数２１.５〜３１.５kN/mm２、および材齢３時間の圧縮強度２４N/mm２以上のコンクリート床版補修用の高耐久速硬性コンクリート組成物。【選択図】なし
HIGH-DURABLE FAST-CURING CONCRETE COMPOSITION
高耐久速硬性コンクリート組成物
SAITO KEIJI (author) / KIMOTO DAISUKE (author) / TOKUNAGA KENJI (author) / SODA NOBUO (author) / NARITA TOMOHIRO (author) / TAKEDA HIROTSUGU (author) / SUGAWARA NORIO (author)
2018-12-27
Patent
Electronic Resource
Japanese
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