Figure 3.
The image depicts a bar graph of Compressive strength in megapascals on the left y-axis and Compressive strength in pounds per square inch on the right y-axis versus Age on the x-axis at 1.5 hours, 3 hours, 1 day, 7 days, 14 days, and 28 days. Mixes include B C S A, P L C, 90-P L C plus 10-B C S A, 70-P L C plus 30-B C S A, 50-P L C plus 50-B C S A, 50-P L C plus 20-B C S A plus 30-C C, 30-P L C plus 40-B C S A plus 30-C C, 10-P L C plus 60-B C S A plus 30-C C, and L C 3. Strength increases with age for all mixes, with B, C, S, A, and blended systems reaching about 45 to 50 megapascals at 28 days.Compressive strength results at six different curing ages