News

Stay up-to-date with the latest news from The SEFA Group.

The SEFA Group is heavily involved in the promotion of ready mixed concrete through our participation in many ready mixed concrete associations.

Learn More
View MSDS
 
Today's Fly Ash Technical Advantages of Fly Ash in Plastic Concrete
Technical Advantages of Fly Ash in Hardened Concrete
Chemical Composition Example of Mix Design
Specifications and Agencies

Example of Mix Design

Control Mix
Theoretical
Fly Ash Mix
Theoretical
Weight
Volume
Weight
Volume
550
2.78
CEMENT
480
2.44
0
0.00
FLY ASH
140
1.00
1845
11.24
STONE
1845
11.24
1246
7.62
SAND
1138
6.96
267
4.28
WATER
(32 gal.)
267
4.28
1.08
AIR (4%)
1.08
3908
27.00
TOTALS
3870
27.00

 

 
Plastic Data
Plastic Data
4.0"
SLUMP
4.0"
3.0%
ENTRAINED AIR
3.5%
55 F
CONCRETE TEMPERATURE
61 F
53 F
AIR TEMPERATURE
59 F
142.7#
CUBIC FOOT WEIGHT
142.7#
26.85

YIELD
26.98

 
Average Compressive Strength
Average Compressive Strength
3120 psi
3 DAY
3055 psi
3490 psi
4 DAY
3310 psi
4985 psi
7 DAY
5040 psi
5855 psi
28 DAY
6020 psi

 

 
 

Virginia Ready Mix Concrete Association Alabama Carolina Ready Mix Concrete Association Virginia Ready Mix Concrete Association Georgia Concrete & Products Association Maryland Ready Mix Concrete Association Kentucky Ready Mix Concrete Association Tennessee Concrete Association National Ready Mix Concrete Association American Coal Ash Association

South Carolina
217 Cedar Road
Lexington, SC 29073
Toll Free 888.339.SEFA