The properties of low-heat Portland cement concrete(LHC) were studied in detail. The experimental results show that the LHC
concrete has characteristics of a higher physical mechanical behavior, deformation and durability. Compared with moderate-heat
Portland cement(MHC), the average hydration heat of LHC concrete is reduced by about 17.5%. Under same mixing proportion,
the adiabatic temperature rise of LHC concrete was reduced by 2 °C–3°C,and the limits tension of LHC concrete was increased
by 10×10
−6–15×10
−6 than that of MHC. Moreover, it is indicated that LHC concrete has a better anti-crack behavior than MHC concrete.
Key words low-heat portland cement - mass concrete - high crack resistance - moderate-heat portland cement
Funded by the National Natural Science Foundation of China (No. 50539010)