Taiheiyo Cement Corporation

Susumu Sano

Makihiko Ichikawa

Kouki Ichitsubo

Daisuke Sawaki

Kenichi Matsumoto

Kenichi Homma

Norihiko Arai

A hydraulic composition including: a ground burned product A having a hydraulic modulus (H.M.) of 1.8 to 2.3, a silica modulus (S.M.) of 1.3 to 2.3 and an iron modulus (I.M.) of 1.3 to 2.8; and a gypsum. The hydraulic composition is capable of reducing heat of hydration and producing a mortar or a concrete excellent in flowability and strength development.

Hydraulic composition

New alkanolamine additives for improving the compressive strength, etc. of set cementitious compositions such as Portland cement concrete are described as having at least one alkanolamine or the salt thereof containing at least one alkanol group, and at least one ionic functional group other than hydroxyl group.

Additives for cement materials and cement materials

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Sakura, Japan

Susumu Sano