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Table 4 Prismatic compressive strength of concrete produced with desert sand after elevated temperature.

From: Mechanical Performances of Concrete Produced with Desert Sand After Elevated Temperature

Cooling regime

Temperature

Prismatic compressive strength/MPa

T1

T2

T3

T4

T5

Natural cooling

Room temperature

31.70

31.93

35.00

32.55

32.10

100 °C

30.35

30.55

32.32

31.97

30.05

300 °C

18.92

20.75

23.44

21.14

22.47

500 °C

9.80

10.98

12.42

11.66

12.10

Water cooling

Room temperature

31.70

31.93

35.00

32.55

32.10

100 °C

30.31

30.47

31.95

31.32

29.22

300 °C

16.80

18.78

21.21

16.85

16.53

500 °C

9.57

10.84

11.95

11.52

11.68