A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
Properties of portland cement-silica fume pastes I. Porosity and surface properties
AbstractProperties such as porosity, pore-size distribution, surface area and drying shrinkage are determined for silica fume-portland cement blends (0–30% silica fume) cured from 1 to 180 days at w/ (c+sf) of 0.25 and 0.45. Porosity was measured by helium, mercury and water techniques. It is shown that in paste blends a discontinuous pore structure is formed after as little as seven days of curing due to reaction of Ca(OH)2 with silica fume. The pores are not so large as those in mortars owing to the lack of interface effects. Total porosities of the blends can only be measured by a water technique, whereas for plain cement pastes other techniques are applicable.
Properties of portland cement-silica fume pastes I. Porosity and surface properties
AbstractProperties such as porosity, pore-size distribution, surface area and drying shrinkage are determined for silica fume-portland cement blends (0–30% silica fume) cured from 1 to 180 days at w/ (c+sf) of 0.25 and 0.45. Porosity was measured by helium, mercury and water techniques. It is shown that in paste blends a discontinuous pore structure is formed after as little as seven days of curing due to reaction of Ca(OH)2 with silica fume. The pores are not so large as those in mortars owing to the lack of interface effects. Total porosities of the blends can only be measured by a water technique, whereas for plain cement pastes other techniques are applicable.
Properties of portland cement-silica fume pastes I. Porosity and surface properties
Feldman, R.F. (author) / Cheng-Yi, Huang (author)
Cement and Concrete Research ; 15 ; 765-774
1985-01-11
10 pages
Article (Journal)
Electronic Resource
English
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Structure of Portland Cement Pastes Blended with Sonicated Silica Fume
| British Library Online Contents | 2012