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Two basic formulations for expansive cement have been developed in United States; one designed to expand and compensate for shrinkage which occurs in portland cement concrete as it hardens is called "shrinkage-compensated cement"; other known as "self-stressing cement" is designed to create greater expansion in concrete when it hardens, which will prestress high-tensile imbedded in concrete; former eliminates shrinkage cracks in concrete while latter produces concrete that prestresses itself; expansive component is calcium aluminosulfate whose clinker when blended with that of portland cement produces expansive cement; when mixed with conventional aggregates and water it produces expansive concretes.
Two basic formulations for expansive cement have been developed in United States; one designed to expand and compensate for shrinkage which occurs in portland cement concrete as it hardens is called "shrinkage-compensated cement"; other known as "self-stressing cement" is designed to create greater expansion in concrete when it hardens, which will prestress high-tensile imbedded in concrete; former eliminates shrinkage cracks in concrete while latter produces concrete that prestresses itself; expansive component is calcium aluminosulfate whose clinker when blended with that of portland cement produces expansive cement; when mixed with conventional aggregates and water it produces expansive concretes.
Expansive cement concrete
Concrete Construction
Li, S.T. (author)
1965
3 pages
Article (Journal)
English
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A Basic Study of Expansive Cement and Expansive Concrete
| NTIS | 1964
| European Patent Office | 2019