Fine aggregate and curing temperature effect on concrete maturity

Compressive strength of mortar containing natural pozzolan under various curing temperature

“…At 90 days, the compressive strength of the pozzolan mortar distinctly exceeds that of the OPC mortar and decreases with the curing temperature according to a parabolic shape contrary to that of the OPC mortar which decreases linearly. Topçu and Toprak [14] observed similar results with the decrease in compressive strength for the OPC concrete subjected to curing at different temperature at the 28 days. On the other hand, Monso et al [12] found parabolic curves of strength change with fly ash addition.…”

Application of maturity method to slipforming operations: Performance validation

“…The ASTM standard provides procedures for developing the strength-maturity relationship and for estimating the in-place strength. However, still there are concerns regarding the performance and suitability of various maturity functions in practical applications [12][13][14][15][16]. Research should be conducted to assess the suitability of maturity functions in slipforming and to validate their performance with field applications.…”

Concrete temperature monitoring using passive wireless surface acoustic wave sensor system

“…Curing temperature is one of the parameters considered as a critical factor in the progress of cement hydration by influencing the stability and the transformation of hydrates, and strength development [4,5]. For example, increased curing temperature may improve the strength of concrete at early age [11,12]; whereas, long-term concrete strength can be decreased [3,8]. This is because elevated curing temperature increases the reaction rate [13,14] at early stage of hydration, but also increases the density of hydration products [15], which slows down the hydration process [7].…”

“…Information on the temperature of concrete is significantly important in many areas of civil engineering, especially in the concrete maturity [1][2][3] and hydration kinetics [4][5][6][7][8]. Maturity is an excellent indicator of in-place strength development and quality from fresh to hardened concrete [9]; therefore, concrete strength is often estimated by measuring its maturity [10].…”