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Strength Characteristics of Hand-Quarried Partially-Weathered Quartzite Aggregates in Concrete

Received: 11 November 2014     Accepted: 18 November 2014     Published: 27 November 2014
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Abstract

The use of hand-quarried weathered quartzitic aggregates as the coarse component of concrete was investigated. Samples of hand-quarried quartzite aggregates exhibiting different degrees of weathering were evaluated in quality and their suitability as coarse component of concrete. The 7, 14, 28 and 56 day compressive strengths were obtained from 100mm concrete cube samples prepared with the weathered aggregates in 1:1:2, 1:1.5:3, 1:2:4 and 1:3:6 concrete mixes and different water: cement ratios 0.45, 0.5 and 0.6. Modulus of rupture beams were tested aged 28-days. Control samples were also tested for compressive and tensile strengths using sound granite aggregates obtained from a commercial quarry. The quality tests showed very little difference between the un-weathered quartzite aggregates and the sound granite aggregates. The weathered quartzite aggregates except the highly weathered grade were found to have properties that met specification requirements for concrete. However, the partially weathered aggregates were marginal in quality and had high water absorption values. The 28-day compressive strength of the partially weathered quartzite concrete averaged 86% of the granite. It is concluded that except when the degree of weathering is very high, the partially weathered quartzite stone could be used as coarse aggregates in concrete that would be subjected to low stresses.

Published in American Journal of Civil Engineering (Volume 2, Issue 5)
DOI 10.11648/j.ajce.20140205.12
Page(s) 134-142
Creative Commons

This is an Open Access article, distributed under the terms of the Creative Commons Attribution 4.0 International License (http://creativecommons.org/licenses/by/4.0/), which permits unrestricted use, distribution and reproduction in any medium or format, provided the original work is properly cited.

Copyright

Copyright © The Author(s), 2014. Published by Science Publishing Group

Keywords

Aggregate Index Properties, Compressive Strength, Creep, Water Absorption, Hand-Quarry, Weathered Quartzite

References
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Cite This Article
  • APA Style

    Mark Adom-Asamoah, Yaw A. Tuffour, Russell O. Afrifa, Charles K. Kankam. (2014). Strength Characteristics of Hand-Quarried Partially-Weathered Quartzite Aggregates in Concrete. American Journal of Civil Engineering, 2(5), 134-142. https://doi.org/10.11648/j.ajce.20140205.12

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    ACS Style

    Mark Adom-Asamoah; Yaw A. Tuffour; Russell O. Afrifa; Charles K. Kankam. Strength Characteristics of Hand-Quarried Partially-Weathered Quartzite Aggregates in Concrete. Am. J. Civ. Eng. 2014, 2(5), 134-142. doi: 10.11648/j.ajce.20140205.12

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    AMA Style

    Mark Adom-Asamoah, Yaw A. Tuffour, Russell O. Afrifa, Charles K. Kankam. Strength Characteristics of Hand-Quarried Partially-Weathered Quartzite Aggregates in Concrete. Am J Civ Eng. 2014;2(5):134-142. doi: 10.11648/j.ajce.20140205.12

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  • @article{10.11648/j.ajce.20140205.12,
      author = {Mark Adom-Asamoah and Yaw A. Tuffour and Russell O. Afrifa and Charles K. Kankam},
      title = {Strength Characteristics of Hand-Quarried Partially-Weathered Quartzite Aggregates in Concrete},
      journal = {American Journal of Civil Engineering},
      volume = {2},
      number = {5},
      pages = {134-142},
      doi = {10.11648/j.ajce.20140205.12},
      url = {https://doi.org/10.11648/j.ajce.20140205.12},
      eprint = {https://article.sciencepublishinggroup.com/pdf/10.11648.j.ajce.20140205.12},
      abstract = {The use of hand-quarried weathered quartzitic aggregates as the coarse component of concrete was investigated. Samples of hand-quarried quartzite aggregates exhibiting different degrees of weathering were evaluated in quality and their suitability as coarse component of concrete. The 7, 14, 28 and 56 day compressive strengths were obtained from 100mm concrete cube samples prepared with the weathered aggregates in 1:1:2, 1:1.5:3, 1:2:4 and 1:3:6 concrete mixes and different water: cement ratios 0.45, 0.5 and 0.6. Modulus of rupture beams were tested aged 28-days. Control samples were also tested for compressive and tensile strengths using sound granite aggregates obtained from a commercial quarry. The quality tests showed very little difference between the un-weathered quartzite aggregates and the sound granite aggregates. The weathered quartzite aggregates except the highly weathered grade were found to have properties that met specification requirements for concrete. However, the partially weathered aggregates were marginal in quality and had high water absorption values. The 28-day compressive strength of the partially weathered quartzite concrete averaged 86% of the granite. It is concluded that except when the degree of weathering is very high, the partially weathered quartzite stone could be used as coarse aggregates in concrete that would be subjected to low stresses.},
     year = {2014}
    }
    

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  • TY  - JOUR
    T1  - Strength Characteristics of Hand-Quarried Partially-Weathered Quartzite Aggregates in Concrete
    AU  - Mark Adom-Asamoah
    AU  - Yaw A. Tuffour
    AU  - Russell O. Afrifa
    AU  - Charles K. Kankam
    Y1  - 2014/11/27
    PY  - 2014
    N1  - https://doi.org/10.11648/j.ajce.20140205.12
    DO  - 10.11648/j.ajce.20140205.12
    T2  - American Journal of Civil Engineering
    JF  - American Journal of Civil Engineering
    JO  - American Journal of Civil Engineering
    SP  - 134
    EP  - 142
    PB  - Science Publishing Group
    SN  - 2330-8737
    UR  - https://doi.org/10.11648/j.ajce.20140205.12
    AB  - The use of hand-quarried weathered quartzitic aggregates as the coarse component of concrete was investigated. Samples of hand-quarried quartzite aggregates exhibiting different degrees of weathering were evaluated in quality and their suitability as coarse component of concrete. The 7, 14, 28 and 56 day compressive strengths were obtained from 100mm concrete cube samples prepared with the weathered aggregates in 1:1:2, 1:1.5:3, 1:2:4 and 1:3:6 concrete mixes and different water: cement ratios 0.45, 0.5 and 0.6. Modulus of rupture beams were tested aged 28-days. Control samples were also tested for compressive and tensile strengths using sound granite aggregates obtained from a commercial quarry. The quality tests showed very little difference between the un-weathered quartzite aggregates and the sound granite aggregates. The weathered quartzite aggregates except the highly weathered grade were found to have properties that met specification requirements for concrete. However, the partially weathered aggregates were marginal in quality and had high water absorption values. The 28-day compressive strength of the partially weathered quartzite concrete averaged 86% of the granite. It is concluded that except when the degree of weathering is very high, the partially weathered quartzite stone could be used as coarse aggregates in concrete that would be subjected to low stresses.
    VL  - 2
    IS  - 5
    ER  - 

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Author Information
  • Department of Civil Engineering, College of Engineering, Kwame Nkrumah University of Science and Technology, Kumasi, Ghana

  • Department of Civil Engineering, College of Engineering, Kwame Nkrumah University of Science and Technology, Kumasi, Ghana

  • Department of Civil Engineering, College of Engineering, Kwame Nkrumah University of Science and Technology, Kumasi, Ghana

  • Department of Civil Engineering, College of Engineering, Kwame Nkrumah University of Science and Technology, Kumasi, Ghana

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