1. Standard Test Method for Resistance of Concrete to Rapid Freezing and Thawing.;ASTM C 666,1997
2. Testing Concrete—Recommendations for Measurement of Velocity of Ultrasonic Pulses in Concrete;BS 1881 Testing Concrete, Part 203,1986
3. Compressive strength of test cubes;BS EN 12390‐3,2002
4. BS 812–109, 1990. Testing Aggregates. Methods for Determination of Moisture Content.
5. TR 32, “Analysis of Hardened Concrete, a guide to test procedures and interpretation of results”;Concrete Society,1989