Effect of Coarse Aggregate Gradation and Water-Cement Ratio on Unit Weight and Compressive Strength of No-fines Concrete
Self-weight of a structure comprises a major portion of the overall structural load which causes conservative structure design. Reduction of structures’ self-weight is an active area of research today. One of the options is to use lightweight concrete and no-fines concrete is one of its types. This type of concrete is made with coarse aggregates, cement, and water. From the density point of view, it is the lighter concrete compared to normal weight concrete but it exhibits less strength. Normally no-fines concrete is manufactured with uniform size aggregates. The performance of no-fines concrete depends on the cement-aggregate ratio and water-cement (w/c) ratio. This study focuses on investigating experimentally the effect of gradation of coarse aggregates and the w/c ratio on unit weight and compressive strength of no-fines concrete. NFC with two cement-aggregate ratios (1:6 and 1:8) having seven combinations of coarse aggregate gradations (10-5 mm, 16-13mm, 20-16mm, 20-13mm, 20-10mm, 16-10mm and 20-5mm) were studied. Two w/c ratios are considered 0.38 and 0.42. The effect of coarse aggregate gradation, cement-aggregate ratio and w/c ratio are studied in terms of unit weight and compressive strength of NFC. The results reveal the pronounced effect of aggregate gradation on the compressive strength and unit weight of the concrete. Also, a substantial effect on the unit weight and compressive strength is observed with the variation in cement-aggregate ration and the w/c ratio.
Keywords:no-fines, aggregate graddation, cement to agggregate proportion, compressive strength, texture
M. A. Memon, M. A. Bhutto, N. A. Lakho , I. A. Halepoto , A. N. Memon, “Effects of Uncrushed Aggregate on the Mechanical Properties of No-Fines Concrete”, Engineering, Technology & Applied Science Research Vol. 8, No. 3, pp. 2882-2886, 2018 DOI: https://doi.org/10.48084/etasr.1976
K. B. Thombre,Dr. A. B. More, Dr. S. R. Bhagat, ‘‘Investigation of Strength and Workability in No-Fines Concrete”, International Journal of Engineering Research & Technology (IJERT),ISSN: 2278-0181, Vol. 5, Issue 09, pp. 390-393, 2016 DOI: https://doi.org/10.17577/IJERTV5IS090206
Kuennen T., “A new era for porous pavement: Better road for the government project team’’,Better Roads Magazine, pp.28-32, 2003
Schaefer, ‘‘Mix design development for pervious concrete in cold weather climates”, Final Report, center for transportation research and education, Iowa State University, pp 85, 2006.
Kevern, “Advancement of pervious concrete durability”, report IA, USA: Iowa State University, pp 894−901, 2008
A. V. Novo, J. R. Bayon, D. Castro-Fresno, J. R. Hernandez, “Temperature Performance of Different Pervious Pavements: Rainwater Harvesting for Energy Recovery Purposes”, pp 5004-5016, 2013 DOI: https://doi.org/10.1007/s11269-013-0270-y
M-J Lee, M-G Lee, Y. Huang, C-L Chiang, “Purification Study of Pervious Concrete Pavement’’, International Journal of Engineering and Technology, Vol. 5, No. 5. pp 532-535, 2013 DOI: https://doi.org/10.7763/IJET.2013.V5.612
Jain, Chouhan, “Effect of shape of aggregate on compressive Strength and permeability properties of pervious concrete”, International journal of advanced engineering research and studies, Vol. I, Issue I, pp 597, 2011.
Zhifeng , W. M. W. Shen, M. Zhou, “'The aggregate gradation for the porous concrete perviousroad base material”, Journal of Wuhan university of Technology mater. Sci. Ed. pp 391, 2008 DOI: https://doi.org/10.1007/s11595-007-3391-4
L. K. Crouch, P.E., J. Pitt, R. Hewitt “Aggregate Effects on Pervious Portland cement Concrete StaticModulus of Elasticity”, ASCE Journal of Materials in Civil Engineering, Vol. 19, Issue 7, pp. 561-568, 2007 DOI: https://doi.org/10.1061/(ASCE)0899-1561(2007)19:7(561)
M. Carsana, F. Tittarelli, L. Bertolini, “Use of No-Fines concrete as a Building Materials: Strength, Durability Properties and Corrosion protection of embedded steel”, Cement and Concrete Research, Vol. 48, pp. 64-73, 2013 DOI: https://doi.org/10.1016/j.cemconres.2013.02.006
M. A. Kabir, K. M. S. Islam, “Performance study on no fines concrete”, 3rdInternational Conference on Civil Engineering for Sustainable Development (ICCESD), KUET, Khulna, Bangladesh, 2016.
How to Cite
MetricsAbstract Views: 737
PDF Downloads: 327
Authors who publish with this journal agree to the following terms:
- Authors retain the copyright and grant the journal the right of first publication with the work simultaneously licensed under a Creative Commons Attribution License that allows others to share the work with an acknowledgement of the work's authorship and initial publication in this journal.
- Authors are able to enter into separate, additional contractual arrangements for the non-exclusive distribution of the journal's published version of the work (e.g., post it to an institutional repository or publish it in a book), with an acknowledgement of its initial publication in this journal.
- Authors are permitted and encouraged to post their work online (e.g., in institutional repositories or on their website) after its publication in ETASR with an acknowledgement of its initial publication in this journal.