APPLICABILITY OF ASSESSMENT METHOD OF UNIT CEMENT CONTENT BY SODIUM GLUCONATE TO HARDENED HIGH-STRENGTH CONCRETE

Sodium gluconate method has been applied to estimate unit cement content of hardened normal concrete. Applicability of sodium gluconate method to high-strength concrete using ordinary, moderate-heat and low-heat portland cement was studied. It was shown that the unit cement content of hardened high-strength concrete, made with various portland cements, could be estimated with an accuracy of ±5% of the designed value. The sodium gluconate method is applicable to high-strength concrete made with various portland cements.