{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2025,2,25]],"date-time":"2025-02-25T05:27:12Z","timestamp":1740461232563,"version":"3.37.3"},"reference-count":0,"publisher":"IOS Press","content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":[],"published-print":{"date-parts":[[2014]]},"abstract":"<jats:p>This paper aims at evaluating the compressive strength of structural sand lightweight aggregate concrete (LWC) by the non-destructive ultrasonic pulse velocity method. To this end, a comprehensive experimental study was carried out involving more than 70 different compositions tested between 3 and 180 days with mean compressive strengths ranging from about 30 to 80 MPa and density classes from D1.6 to D2.0. The influence of several factors on the relation between the ultrasonic pulse velocity (UPV) and compressive strength was examined, including the type and binder content, type and volume of aggregates. It is found that lightweight and normal weight concretes (NWC) are affected differently by mix design parameters. NWC is more affected by the volume of aggregate and the dispersion effect caused by concrete heterogeneity tends to be lower in LWC. The prediction of the concrete's compressive strength by means of the non-destructive UPV test is analysed. Based on the dependence of the UPV on the density and elasticity of concrete, a simplified expression is proposed to estimate the compressive strength, regardless of the type of concrete and its composition. High correlation coefficients were obtained taking into account several results for different types of aggregates and concrete compositions.<\/jats:p>","DOI":"10.3233\/978-1-61499-466-4-293","type":"book-chapter","created":{"date-parts":[[2025,2,22]],"date-time":"2025-02-22T11:33:52Z","timestamp":1740224032000},"source":"Crossref","is-referenced-by-count":0,"title":["Ultrasonic pulse velocity used to predict the compressive strength of structural sand lightweight concrete"],"prefix":"10.3233","author":[{"family":"Bogas J. Alexandre","sequence":"additional","affiliation":[]},{"family":"Gomes M. Gl&oacute;ria","sequence":"additional","affiliation":[]},{"family":"Real Sofia","sequence":"additional","affiliation":[]},{"family":"Pontes Jorge","sequence":"additional","affiliation":[]}],"member":"7437","container-title":["Construction Materials and Structures"],"original-title":[],"deposited":{"date-parts":[[2025,2,24]],"date-time":"2025-02-24T11:45:04Z","timestamp":1740397504000},"score":1,"resource":{"primary":{"URL":"https:\/\/www.medra.org\/servlet\/aliasResolver?alias=iospressISBN&isbn=978-1-61499-465-7&spage=293&doi=10.3233\/978-1-61499-466-4-293"}},"subtitle":[],"short-title":[],"issued":{"date-parts":[[2014]]},"references-count":0,"URL":"https:\/\/doi.org\/10.3233\/978-1-61499-466-4-293","relation":{},"subject":[],"published":{"date-parts":[[2014]]}}}