American Society of Civil Engineers

Evaluation of Compressive Strength for High-Strength Concrete by Pulse Velocity Method

by R. Sri Ravindrarajah, (Univ of Technology, Sydney)

pp. 115-126

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Document type: Conference Proceeding Paper
Part of: Nondestructive Testing of Concrete Elements and Structures
Abstract: Development of compressive strength and pulse velocity for high-strength concrete from the age of 5 hours are studied in relation to cementitious material types and curing conditions. Normal portland cement, blast-furnace slag cement and silica fume are used individually or in combination. Results show that: a) silica fume in concrete increases the pulse velocity; b) pulse velocity and strength are ower for air-cured concrete than for water-cured concrete; and c) the relationship between strength and pulse velocity is given by an exponential curve which is less influenced by curing or cementitious material types. Evaluation of in-situ concrete strength based on paste efficiency concept is examined.

ASCE Subject Headings:
Compressive strength
High-strength concrete
In situ tests
Nondestructive tests
Ultrasonic methods

Author Keywords:
Concrete--Nondestructive Examination - Ultrasonic Waves--Propagation
Blast Furnace Slag Cement - Compressive Strength - High Strength Concrete - Portland Cement - Pulse Velocity Method - Silica Fume