Properties
of expanded HEM-concrete with the cement-sand
Ratio 1:2
With the oven-dry density, kg per cu. m. – 1250 – 1350 (77- 83 pcf), compressive strength – 4 –7 Mpa (600-1000 psi).
With the oven-dry density 1400 kg/cu.m. (87.5 pcf), compressive strength - 13 Mpa (1,900 psi).
Thermal conductivity 3.3 - 4.O mW/cm.K .
CAPILLARY
FLOW
Comparative analysis of expanded
HEM-mortar and lightweight concrete economical data
|
Materials, labor and other |
Units |
Unit price |
1:2:3 Lightweight aggregate concrete |
Expanded HEM-concrete Cement:Sand = 1:2 |
||
|
Quantity per cu yd. |
Costs |
Quantity per cu.yd. |
Costs |
|||
|
Portland cement |
Bag |
$6.50 |
6.2 |
40.30 |
5.84 |
37.96 |
|
Vermiculite or perlite |
Bag |
$8.15 |
4.7 |
38.31 |
- |
- |
|
Sand |
cu.yd. |
$17.85 |
0.46 |
8.21 |
0.41 |
7.32 |
|
Superplasti-cizer |
lb |
$2.59 |
- |
- |
5.0 |
12.95 |
|
Plant and water |
|
|
|
5.92 |
|
5.92 |
|
Labor, machine etc. Crew C-8 |
M.h. |
$32.03 |
0.91 |
29.15 |
0.91 |
29.15 |
|
Energy for mixing |
Kwt-h |
$0.142 |
- |
- |
16.13 |
2.29 |
|
Total in place per cu. yd $121.89 - Lightweight concrete; $96.36 – Expanded HEM-concrete |
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