Evaluation of the Troxler Model 4430 Water-Cement Gaugeby
Civil Engineering Research Foundation, ASCE
American Society of Civil Engineers, New York, NY
978-0-7844-0167-5 (ISBN-13) | 0-7844-0167-5 (ISBN-10), 1996, Soft Cover, Pg. xi 41
28 cm., CERF Report: HITEC 96-03-F; Technical Evaluation Report ; Prepared by Highway Innovative Technology Evaluation Center
Abstract: This report describes a HITEC evaluation designed to determine the basic capabilities and limitations of the Model 4430 gauge, manufactured by the Troxler Electronic Laboratories, for use in quality control and quality assurance procedures for concrete construction. The ratio of water to cementitious materials in a concrete mix is recognized as a prime determinant of the strength and ultimate durability of the concrete. The Model 4430 Nuclear Water/Cement Ratio Gauge is designed to measure the water-to-cement ratio in fresh concrete sequentially. The evaluation was carried out in four phases: computer simulations, laboratory testing, precision and bias evaluation, and field demonstrations.
Subject Headings: Laboratory tests | Cement | Quality control | Material durability | Strength of materials | Highways and roads | Innovation
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