We Energies Coal Combustion Products ... - The White House

1800
COMPRESSIVE STRENGTH, psi
1600
1400
1200
1000
800
600
400
200
F-1
F-2
F-3
F-4
F-5
F-6
*
0
400 450 500 550 600 650 700 750 800
CEMENT PLUS FLY ASH CONTENT, lbs
Figure 5-5: CLSM 28-Day Compressive Strength vs. Total Cementitious Material
COMPRESSIVE STRENGTH, psi
1800
1600
1400
1200
1000
800
600
400
200
* CLSM Strength
Limit per ACI 229
F-1
F-2
F-3
F-4
F-5
F-6
*
0
0.3 0.35 0.4 0.45 0.5 0.55 0.6 0.65 0.7 0.75 0.8
W A TER TO TO TA L C EM EN TITIO U S M A TER IA L R A TIO , %
Figure 5-6: CLSM 28-Day Compressive Strength vs. Water to Cementitious Material Ratio
The following conclusions were made from this research (38).
1. The compressive strength decreased as water to cementitious material
ratio increased.
2. All mixtures showed good flowability and workability.
3. Shrinkage was minimal.
4. The mixture designs developed performed well and can be used as a basis
for selecting mixture proportions for CLSMs or low-strength concrete
with high slump for non-structural applications, using the same materials.
5. All of these mixtures will not be easily excavatable.
137 We Energies
Coal Combustion Products
Utilization Handbook