Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
LIMESTONE CALCINED CLAY CEMENT (LC3) CONSTRUCTION COMPOSITION
A limestone calcined clay cement construction composition comprises a) a cementitious binder comprising one or more calcium silicate mineral phases and one or more calcium aluminate mineral phases, and having a Blaine surface area of at least 3800 cm2/g; b) a supplementary cementitious material having a Dv90 of less than 200 μm comprising (b-1) a calcined clay material and (b-2) a carbonate rock powder in a weight ratio of (b-1) to (b-2) in the range of 0.5 to 2; c) optionally, an extraneous aluminate source; d) a sulfate source; and e) a polyol. The composition contains a controlled amount of available aluminate, calculated as Al(OH)4−, from the calcium aluminate mineral phases plus the optional extraneous aluminate source; and the molar ratio of total available aluminate to sulfate is 0.4 to 2.0. The construction composition further comprises f) an ettringite formation controller. The limestone calcined clay cement construction composition is a reduced carbon footprint composition and exhibits high early strength, high final strength, sufficient open time and high durability.
LIMESTONE CALCINED CLAY CEMENT (LC3) CONSTRUCTION COMPOSITION
A limestone calcined clay cement construction composition comprises a) a cementitious binder comprising one or more calcium silicate mineral phases and one or more calcium aluminate mineral phases, and having a Blaine surface area of at least 3800 cm2/g; b) a supplementary cementitious material having a Dv90 of less than 200 μm comprising (b-1) a calcined clay material and (b-2) a carbonate rock powder in a weight ratio of (b-1) to (b-2) in the range of 0.5 to 2; c) optionally, an extraneous aluminate source; d) a sulfate source; and e) a polyol. The composition contains a controlled amount of available aluminate, calculated as Al(OH)4−, from the calcium aluminate mineral phases plus the optional extraneous aluminate source; and the molar ratio of total available aluminate to sulfate is 0.4 to 2.0. The construction composition further comprises f) an ettringite formation controller. The limestone calcined clay cement construction composition is a reduced carbon footprint composition and exhibits high early strength, high final strength, sufficient open time and high durability.
LIMESTONE CALCINED CLAY CEMENT (LC3) CONSTRUCTION COMPOSITION
KALKSTEIN-KALZINIERTER TON-ZEMENT (LC3) BAUSTOFFZUSAMMENSETZUNG
CIMENT-ARGILO CALCINÉ-CALCAIRE (LC3) COMPOSITION DE CONSTRUCTION
BANDIERA MASSIMO (Autor:in) / SCHWESIG PETER (Autor:in) / SACHSENHAUSER BERNHARD (Autor:in) / DHERS SEBASTIAN (Autor:in)
27.03.2024
Patent
Elektronische Ressource
Englisch
IPC:
C04B
Kalk
,
LIME
Limestone calcined clay cement (LC3) construction composition
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