This European Standard was approved by CEN on 27 December 2008. Prüfung von Festbeton - Teil 7: Dichte von Festbeton Testing hardened concrete - Part 7: Density of hardened concrete Essai pour béton durci - Partie 7 : Masse volumique du béton durci This British Standard was published under the authority of the Standards Policy and Strategy Committee on © BSI 2009Īmendments/corrigenda issued since publication DateĮUROPEAN STANDARD NORME EUROPÉENNE EUROPÄISCHE NORM Compliance with a British Standard cannot confer immunity from legal obligations. Users are responsible for its correct application. This publication does not purport to include all the necessary provisions of a contract. A list of organizations represented on this committee can be obtained on request to its secretary. The UK participation in its preparation was entrusted to Technical Committee B/517/1, Concrete production and testing. It supersedes BS EN 12390-7:2000 and which is withdrawn. National foreword This British Standard is the UK implementation of EN 12390-7:2009. NO COPYING WITHOUT BSI PERMISSION EXCEPT AS PERMITTED BY COPYRIGHT LAW Further, the ultimate experimental bond stress of OPKSC was found nearly 2 times higher than the theoretical values calculated based on BS standards.Testing hardened concrete Part 7: Density of hardened concrete The bond stress of the OPKSC was found about 86% of the corresponding NWC however, there was no slip failure between OPKSC and the reinforcement.

The addition of silica fume enhanced the compressive strength and thus OPKSC produced 28-day compressive strength up to 37 MPa. The OPKSC produced a density reduction of about 20% compared to NWC. In addition, mineral admixtures, 10% of silica fume and 5% fly ash have been used. Oil palm kernel shell (OPKS), an industrial waste has been used as lightweight aggregates (LWA) in the OPKSC. The comparison of the fresh, mechanical and bond properties of grade 30 lightweight concrete, namely oil palm kernel shell concrete (OPKSC) with normal weight concrete (NWC) of similar strength is presented in this paper.

Bs en 12390 1