Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Effect of cement [C.sub.3]A content on properties of cementitious systems containing high-range water-reducing admixture
The effect of cement tricalcium aluminate ([C.sub.3]A) content on the properties of cement paste, mortar, and concrete mixtures containing high-range water-reducing (HRWR) admixture was investigated. Three commercial Type I cements prepared with the same raw material and same gypsum rock interground with clinker, but with different [C.sub.3]A contents (by changing mixture proportions), were used. The fresh state, rheological properties, and compressive strength of the mixtures were studied. Moreover, X-ray diffraction (XRD) patterns of 6-h-age paste mixtures from each cement were obtained. By reducing the [C.sub.3] A content of the cements, the fresh state, rheological, and consistency retention properties of the mixtures improved; however, the strength of the mixtures at early ages decreased. The difference between strength of the mixtures closed at later ages. The XRD analysis of the pastes revealed the formation of more ettringite in the paste prepared from high [C.sub.3]A content cement. DOI: 10.1061/(ASCE)MT.1943-5533.0001925.
Effect of cement [C.sub.3]A content on properties of cementitious systems containing high-range water-reducing admixture
The effect of cement tricalcium aluminate ([C.sub.3]A) content on the properties of cement paste, mortar, and concrete mixtures containing high-range water-reducing (HRWR) admixture was investigated. Three commercial Type I cements prepared with the same raw material and same gypsum rock interground with clinker, but with different [C.sub.3]A contents (by changing mixture proportions), were used. The fresh state, rheological properties, and compressive strength of the mixtures were studied. Moreover, X-ray diffraction (XRD) patterns of 6-h-age paste mixtures from each cement were obtained. By reducing the [C.sub.3] A content of the cements, the fresh state, rheological, and consistency retention properties of the mixtures improved; however, the strength of the mixtures at early ages decreased. The difference between strength of the mixtures closed at later ages. The XRD analysis of the pastes revealed the formation of more ettringite in the paste prepared from high [C.sub.3]A content cement. DOI: 10.1061/(ASCE)MT.1943-5533.0001925.
Effect of cement [C.sub.3]A content on properties of cementitious systems containing high-range water-reducing admixture
Mardani-Aghabaglou, Ali (Autor:in) / Felekoglu, Burak / Ramyar, Kambiz
2017
Aufsatz (Zeitschrift)
Englisch
BKL:
56.45
Baustoffkunde
Lokalklassifikation TIB:
535/6520/6525/xxxx
ADMIXTURE FOR FLUIDIFYING A CEMENTITIOUS COMPOSITION WITH REDUCED CEMENT CONTENT
| Europäisches Patentamt | 2024
ADMIXTURE FOR FLUIDIFYING A CEMENTITIOUS COMPOSITION WITH REDUCED CEMENT CONTENT
| Europäisches Patentamt | 2024