Hdl Handle:
http://hdl.handle.net/10545/621441
Title:
Impact of vibration time on compressive strength of hardened sandcrete building blocks
Authors:
Omoregie, Alohan
Abstract:
The majority of the sandcrete blocks used in the Nigerian building industry fall short of the minimum specification standards. There is evidence to suggest a wide variation in compressive strength from one block manufacturer to another and also within block samples from a single source. This problem has been attributed to poor quality control and substandard constituent materials. Also very alarming is the ignorance surrounding the usage and engineering properties of some of the widely used fine aggregate deposits. As a way forward, this paper aims to re-establish the impact of vibration time in sandcrete block production using six fine aggregate deposits found within Benin City (Midwestern Nigeria) and their various pair combinations. Some of the basic properties like silt content, grading parameters—co-efficient of uniformity (Cu), curvature co-efficient (Cc) and the fineness modulus (Fm)—of these fine aggregates were established by laboratory means. In addition, the wet and dry compressive strength of these sandcrete blocks made from these sands were established. A total of 1,080 block samples produced under very controlled conditions were used in this investigation. It was revealed that the utility value of sand can be improved when the weaker and commonly used sands were combined with those that are better, more expensive and less frequently used at different vibration periods and ratios. Findings further revealed that sand types and the sand combination approach adopted were very significant to grading parameters and strength; at a much higher vibration time the compressive strength and durability properties were also considerably improved
Affiliation:
University of Bolton
Citation:
Omoregie, A. (2012) 'Impact of vibration time on compressive strength of hardened sandcrete building blocks', Buildings, 2(2), 153-172; doi:10.3390/buildings2020153
Publisher:
Multidisciplinary Digital Publishing Institute (MDPI)
Journal:
Buildings
Issue Date:
9-May-2012
URI:
http://hdl.handle.net/10545/621441
DOI:
10.3390/buildings2020153
Additional Links:
http://www.mdpi.com/2075-5309/2/2/153
Type:
Article
Language:
en
ISSN:
20755309
Sponsors:
N/A
Appears in Collections:
Department of Mechanical Engineering & the Built Environment

Full metadata record

DC FieldValue Language
dc.contributor.authorOmoregie, Alohanen
dc.date.accessioned2017-02-20T16:22:32Z-
dc.date.available2017-02-20T16:22:32Z-
dc.date.issued2012-05-09-
dc.identifier.citationOmoregie, A. (2012) 'Impact of vibration time on compressive strength of hardened sandcrete building blocks', Buildings, 2(2), 153-172; doi:10.3390/buildings2020153en
dc.identifier.issn20755309-
dc.identifier.doi10.3390/buildings2020153-
dc.identifier.urihttp://hdl.handle.net/10545/621441-
dc.description.abstractThe majority of the sandcrete blocks used in the Nigerian building industry fall short of the minimum specification standards. There is evidence to suggest a wide variation in compressive strength from one block manufacturer to another and also within block samples from a single source. This problem has been attributed to poor quality control and substandard constituent materials. Also very alarming is the ignorance surrounding the usage and engineering properties of some of the widely used fine aggregate deposits. As a way forward, this paper aims to re-establish the impact of vibration time in sandcrete block production using six fine aggregate deposits found within Benin City (Midwestern Nigeria) and their various pair combinations. Some of the basic properties like silt content, grading parameters—co-efficient of uniformity (Cu), curvature co-efficient (Cc) and the fineness modulus (Fm)—of these fine aggregates were established by laboratory means. In addition, the wet and dry compressive strength of these sandcrete blocks made from these sands were established. A total of 1,080 block samples produced under very controlled conditions were used in this investigation. It was revealed that the utility value of sand can be improved when the weaker and commonly used sands were combined with those that are better, more expensive and less frequently used at different vibration periods and ratios. Findings further revealed that sand types and the sand combination approach adopted were very significant to grading parameters and strength; at a much higher vibration time the compressive strength and durability properties were also considerably improveden
dc.description.sponsorshipN/Aen
dc.language.isoenen
dc.publisherMultidisciplinary Digital Publishing Institute (MDPI)en
dc.relation.urlhttp://www.mdpi.com/2075-5309/2/2/153en
dc.subjectFine aggregatesen
dc.subjectUniformity coefficienten
dc.subjectCurvature coefficienten
dc.subjectFineness modulusen
dc.subjectVibration timeen
dc.subjectCompressive strengthen
dc.subjectSilt contentsen
dc.subjectNigeriaen
dc.titleImpact of vibration time on compressive strength of hardened sandcrete building blocksen
dc.typeArticleen
dc.contributor.departmentUniversity of Boltonen
dc.identifier.journalBuildingsen
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