Process for improving the physical properties of cement paste and the like

摘要

The invention relates to a process for improving the physical properties of cement pastes, cement mortars and concrete by the addition of terpene polymers, in particular of liquid low-molecular terpenes alone or as a mixture with other terpene hydrocarbons, which are added to the cement-containing building materials in a quantity of 0.1-10 % by weight, relative to the binder weight, whereby an increase in strength by 20-30 %, a reduction in efflorescence and a reduction in water absorption are obtained.