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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12,000<br />
11,500<br />
11,000<br />
Compressive <strong>Strength</strong> (psi<br />
10,500<br />
10,000<br />
9,500<br />
9,000<br />
8,500<br />
8,000<br />
7,500<br />
7,000<br />
Mix A Field<br />
Mix A Laboratory<br />
Mix B Field<br />
Mix B Laboratory<br />
Mix C Field<br />
Mix C Laboratory<br />
0 10 20 30 40 50 60<br />
Time (days)<br />
Figure 3.6 Average <strong>Strength</strong> <strong>for</strong> Mix A, Mix B, and Mix C ACC 4x8 Cylinders <strong>for</strong> Field Mixing<br />
and Laboratory Mixing<br />
3.3.2 Modulus of Elasticity<br />
The 16 additional modulus of elasticity 6x12 inch cylinders provided improved data <strong>for</strong><br />
developing a better relation <strong>for</strong> predicting E of expanded slate HPLC as given below.<br />
0.9<br />
E c = ((33,000 f ' − 9000)( w /100) + 100,000)(117.75/ w )<br />
That proposed equation is shown in Figure 3.7.<br />
c<br />
c<br />
c<br />
3-9
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