Porosity of hardened portland cement pastes / by L. E. Cope-land and J. C. Hayes.
Copeland, L. E.
Porosity of hardened portland cement pastes / by L. E. Cope-land and J. C. Hayes. - Chicago : atories - [14] p. - Bulletin 68 / Portland Cement Association .
Porosity of hardened portland cement pastes / by L. E. Cope-land and J. C. Hayes. - Chicago : atories - [14] p. - Bulletin 68 / Portland Cement Association .