A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
HARDENING ACCELERATOR CONTAINING ETTRINGITE AND CALCIUM SILICATE HYDRATE
The invention concerns a process for the preparation of a calcium silicate hydrate and ettringite containing hardening accelerator composition by reaction of a water-soluble calcium compound, silicate compound, aluminum compound and a sulfate compound, wherein the molar ratio of silicon to sulfate is from 2/1 to 30/1 and the reaction of the four compounds being carried out in the presence of an aqueous solution which contains a comb polymer suitable as a plasticizer for hydraulic binders. Also concerned are the use of said accelerators in building material mixtures, the building material mixtures containing said accelerators and a process for the preparation of a sprayable binder composition in which said accelerators are used.
HARDENING ACCELERATOR CONTAINING ETTRINGITE AND CALCIUM SILICATE HYDRATE
The invention concerns a process for the preparation of a calcium silicate hydrate and ettringite containing hardening accelerator composition by reaction of a water-soluble calcium compound, silicate compound, aluminum compound and a sulfate compound, wherein the molar ratio of silicon to sulfate is from 2/1 to 30/1 and the reaction of the four compounds being carried out in the presence of an aqueous solution which contains a comb polymer suitable as a plasticizer for hydraulic binders. Also concerned are the use of said accelerators in building material mixtures, the building material mixtures containing said accelerators and a process for the preparation of a sprayable binder composition in which said accelerators are used.
HARDENING ACCELERATOR CONTAINING ETTRINGITE AND CALCIUM SILICATE HYDRATE
ERHÄRTUNGSBESCHLEUNIGER ENTHALTEND ETTRINGIT UND CALCIUMSILIKATHYDRAT
ACCÉLÉRATEUR DE DURCISSEMENT COMPRENANT DE L'ETTRINGITE ET DE L'HYDRATE DE SILICATE DE CALCIUM
HESSE CHRISTOPH (author) / LOGES NIKLAS (author)
2020-02-26
Patent
Electronic Resource
English
IPC:
C04B
Kalk
,
LIME
Hardening accelerator containing ettringite and calcium silicate hydrate
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