Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Rheological properties of dispersed cement grouts
Conclusions Pumping of cement grouts through pipes of different diameters showed a ubiquitous decrease of pressure Losses along the length (and accordingly a considerable improvement of pumpability) for dispersed grouts compared with undispersed.The main rheological parameters of ordinary and dispersed cement grouts were established as a result of the bench investigations. After dispersing grouts (up to three passes through the disperser) the indices of the dynamic shear stress and non-Newtonian viscosity of these grouts decrease.It is completely permissible to use the SPV-5 instrument under field (construction) conditions for prompt comparative measurements of the relative viscosity of ordinary and dispersed cement grouts.Dispersion of grouts with up to three passes through the disperser does not affect the strength indices of the hardened cement.The data of the present bench tests confirmed the recommendations published earlier by Gidrospetsproekt concerning the use of dispersed cement grouts with a degree of dispersion of two-three passes through the disperser.
Rheological properties of dispersed cement grouts
Conclusions Pumping of cement grouts through pipes of different diameters showed a ubiquitous decrease of pressure Losses along the length (and accordingly a considerable improvement of pumpability) for dispersed grouts compared with undispersed.The main rheological parameters of ordinary and dispersed cement grouts were established as a result of the bench investigations. After dispersing grouts (up to three passes through the disperser) the indices of the dynamic shear stress and non-Newtonian viscosity of these grouts decrease.It is completely permissible to use the SPV-5 instrument under field (construction) conditions for prompt comparative measurements of the relative viscosity of ordinary and dispersed cement grouts.Dispersion of grouts with up to three passes through the disperser does not affect the strength indices of the hardened cement.The data of the present bench tests confirmed the recommendations published earlier by Gidrospetsproekt concerning the use of dispersed cement grouts with a degree of dispersion of two-three passes through the disperser.
Rheological properties of dispersed cement grouts
Ashikhmen, V. A. (Autor:in) / Pronina, L. É. (Autor:in)
1986
Aufsatz (Zeitschrift)
Englisch
BKL:
56.30
Wasserbau
Lokalklassifikation TIB:
770/6550/8000
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