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Vol. 1 Issue V, December 2013 ISSN: 2321-9653
INTERNATIONAL JOURNAL FOR RESEARCH IN AP PLIED SCIENCE AN D E N G I N E E R I N G T E C H N O L O G Y (I J R A S E T)
Flexural strength and Ultrasonic pulse velocity of Crushing Sand-Lime-Cement-Phosphogypsum Building Brick Grade SW LAMIA BOUCHHIMA1, MOHAMED JAMEL ROUIS2, MOHAMED CHOURA3 Unit Of Oesearch Environmental Geotechnique And Civil Materials, Institute Of The Engineers Of Sfax, Road Sokra, Km3.5, B.P1173-3038 Sfax, Tunisia Abstract The present work focuses on the flexural strength and ultrasonic pulse velocity of wade sand –lime-cement-phosphogypsum building bricks grade SW. It is observed that these bricks have sufficient flexural strength and Ultrasonic pulse velocity Tests were also conducted to study the relationship between ultrasound pulse velocity (UPV) with strength of bricks.. The results suggest that compressive and flexural strength values may approximately be determined without a destructive testing by using the non-destructive UPV measurements. Keywords: Bricks, flexural strength, ultrasonic pulse velocity. INTRODUCTION
building brick grade SW (severe weathering),
bricks
Phosphogypsum (PG) from Tunisia, crushing sand (CS),
intended for use when high and uniform resistance to damage
natural hydraulic lime (NHL), cement (C) and water are used
caused by cyclic freezing is desired and where the brick may
in solid bricks production. phosphogypsum, wade sand,
be frozen when saturated with water [1].
natural hydraulic lime and cement were mixed, humidified,
This study addressed the flexural strength, ultrasound pulse
compacted and cured for periods of 28, 56 and 90 days. The
velocity (UPV) and relations of UPV with strength properties
compressive strength, density, water absorption, saturation
of CS-NHL-C-PG bricks grade SW.
coefficient and leaching test of the bricks were measured. The
Analyzing the properties of materials and establishing
obtained results showed that CS-NHL-C-PG bricks are found
relationships between them through non-destructive tests is an
to be conforming to physical requirements of clay or shale
active area of study and many different methods were
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