Carolina Concrete
P O Box 389
Clinton, SC 29325
Phone (864) 833-0572 Fax (864) 833-2398
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Copyright 2006 Carolina Concrete

Tec Services

Testing * Engineering * Consulting

The Sefa Group                                                                                                            Date:  May 8, 2008

PO Box 6                                                                                                      TEC Services I.D:  TEC 06-0509

Moncks Corner, SC 29461                                                                                           Lab No.:  07-100-WA

 

Report of Fly Ash Tests

Sample I.D. No:      WA032007                                                                                 Date Sampled:   March 20, 2007

Manufacturer:        Wateree Station, Wateree, SC                                                       Date Received:   April 3, 2007

Chemical Analysis

Results

Specification (Class F)

ASTM C168-03

AASHTO M295-05

Silicon Dioxide 54.43 --- ---
Aluminum Oxide 28.05 --- ---
Iron Oxide 7.29 --- ---
Sum of Top Three 89.77 70% min 70% min
Calcium Oxide 1.53 --- ---
Magnesium Oxide 1.18 --- ---
Sulfur Trioxide 0.11 5% max 5% max
Loss on Ignition 1.92 6% max 5% max
Moisture Control 0.04 3% max 3% max
Available Alkalies as Na2O 0.12 --- ---

Physical Analysis

Fineness (Amount Retained on #325) 19.9% 34% max 34% max
Strength Activity Index with Cement

At 7 Days:

Control Avg psi:  4810 Test Avg psi  4180 87% 75% min 75% min

At 28 Days

Control Avg psi 6410 Test Avg psi  5380 84% 75% min 75% min
Water Requirements (test H2O/Control H2O)
Control mls:  242 Test mls:  239 99% 105% max 105% max
Autoclave Expansion 0.04% +/- 0.8% max +/- 0.8% max

Uniformity Requirements

Variation
Specific Gravity      2.21 Average:    2.25 -1.9% 5% max 5% max
% Retained # 325   19.9 Average:   18.8 -1.0% 5% max 5% max

The results of our testing indicate that this sample complies with ASTM 0618-03 and AASHTO M295-05 specifications for Class F pozzolans.

Testing, Engineering and Consulting Services, Inc

Shawn McCormick                                                                                                                       Kevin Lee McCray

Lab Manager                                                                                                                                Senior Technician

Testing Engineering & Consulting Services, Inc

235 Buford Drive*Lawrenceville, GA 30045

(770) 995-8000 * Fax (770) 995-8550