Testing of freeze-thaw resistance portland cement compositions by low temperature dilatometry

Abstract Chemistry of cements hardening processes and concrete frost-resistance with a multifunctional complex anti-Breeze admixtures at negative temperatures is given. The temperature of the beginning of ice formation and extension strain of quick-freezen mortars and concrete depending on water-cement ratio, grade of cements and amount of anti-freeze admixtures are established by low temperature dilatometry. Keywords: Concrete, freeze thaw resisfcmce, cement compositions, anti-freeze admixtures, ice formation, dilatometry.