Lightweight Concrete for High Strength - Expanded Shale & Clay
Lightweight Concrete for High Strength - Expanded Shale & Clay
Lightweight Concrete for High Strength - Expanded Shale & Clay
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12000<br />
Compressive <strong>Strength</strong> (psi)<br />
10000<br />
8000<br />
6000<br />
4000<br />
2000<br />
8,000-psi Accelerated Cure<br />
8,000-psi ASTM Cure<br />
10,000-psi Accelerated Cure<br />
10,000-psi ASTM Cure<br />
0<br />
0 14 28 42 56 70 84 98 112 126 140 154<br />
Age (days)<br />
Figure 4.1. Compressive strength vs. time of 8,000-psi and 10,000-psi HPLC creep and<br />
shrinkage mixes <strong>for</strong> accelerated and ASTM curing methods.<br />
1.8<br />
1.6<br />
Creep Coefficient<br />
1.4<br />
1.2<br />
1.0<br />
0.8<br />
0.6<br />
8,000-psi HPLC<br />
10,000-psi HPLC<br />
0.4<br />
0.2<br />
0.0<br />
0.01<br />
0.10 1.00 10.0 100 1000<br />
Time (days)<br />
Figure 4.2. Average creep coefficient of 8,000-psi and 10,000-psi HPLC in logarithmic time<br />
scale.<br />
4-3
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