Research Articles | Challenge Journal of Concrete Research Letters

Relation Between Density and Compressive Strength of Hardened Concrete

Shohana Iffat

View Counter: Abstract | 3970 times | ‒ Full Article | 1321 times |

Full Text:

PDF

Abstract


Concrete must has to ensure satisfactory compressive strength and durability. The mechanical properties of concrete are highly influenced by its density. A denser concrete generally provides higher strength and fewer amount of voids and porosity. Smaller the voids in concrete, it becomes less permeable to water and soluble elements. So water absorption will also be less and better durability is expected from this type of concrete. In this paper an experimental program conducting on compressive strength, density, absorption capacity and percent voids of hardened concrete is described. The variation of these properties with maturity of concrete was main focus of this experiment. Comparison is made between two types of concrete’s property test results. One of them is lightweight concrete made with crushed brick (BC) as primary coarse aggregate. Crushed brick is a locally available construction material in Indian subcontinent. Another type of concrete is a denser one, made with crushed stone (SC) as primary coarse aggregate. The comparisons on test results are presented with respect to time. It was observed from the experiment that, strength and density increases with maturity of concrete and percent void and absorption capacity decreases with time. Better results were obtained from stone aggregate concrete than brick aggregate concrete in cases of all of the tests.

Keywords


concrete; density; absorption; void; compressive strength

References


Lecture Notes on “Introduction to Concrete”, University of Memphis, USA.

E. Rasa, H. Ketabchi and M.H. Afshar, “Predicting Density and Compressive Strength of Concrete Cement Paste Containing Silica Fume Using Articial Neural Networks”, Transaction A: Civil Engineering, (2009), Vol. 16, No. 1, pp. 33(42).

Neville, A. M. Properties of Concrete, 4th ed., USA, New York: John Wiley and Sons, (1996).

Akeem Ayinde Raheem et al, “Effect of Curing Methods on Density and Compressive Strength of Concrete”, International Journal of Applied Science and Technology, (2013), Vol. 3 No. 4.

“Final Report: Field Measurement of Water-Cement Ratio for Portland Cement Concrete –Phase II Field Evaluation and Development”, Wisconsin Highway Research Program #0092-45-16, Wisconsin Department of Transportation (2002).

Celik Ozyildirim, “Durability of Structural Lightweight Concrete” LWC Bridges Workshop, 2009 IBC.

R. Sri Ravindrarajah & M. C. Lyte, “Properties of adjusted density high-performance concrete”, ADVANCES IN STRUCTURES: Steel, Concrete, Composite and Aluminium, ASSCCA '2003 Conference Sydney, Australia.

Neville, A. M. Properties of Concrete, 4th ed., England: Longman, (2000).

“Technical Bulletin-CIP-36, Structural Lightweight Concrete”, National Ready Mix Concrete Association (2003).

Thomas A. Holm and John P. Ries, “Specified Density Concrete — A Transition”, Expanded Shale, Clay & Slate Institute (ESCSI) - United States.

High-Strength Structural Lightweight Concrete, Light Concrete LLC, California, USA, (2003).

George C. Hoff, “Guide for the Use of Low-Density Concrete in Civil Works Projects”, Innovations for Navigation Projects Research Program, U.S. Army Corps of Engineers Washington, DC, (2002).

Neville, A.M. and Brooks, J.J. Concrete Technology, Longman Scientific & Technical (1987).

Haykin, S., Neural Networks: A Comprehensive Foundation, MacMillan, New York (1994).

Chen Chung Kho, “Water Permeability and Chloride Penetrability of Lightweight Aggregate Concrete”, Proceedings of 9th NUROP Congress, Nanyang Technological University, Singapore (2003).

ASTM C136 –06, Standard Test Method for Sieve Analysis of Fine and Coarse Aggregates, ASTM International, West Conshohocken, PA (2006).

ASTM C128–12, Standard Test Method for Density, Relative Density (Specific Gravity), and Absorption of Fine Aggregate, ASTM International, West Conshohocken, PA (2012).

ASTM C29 – 09, Standard Test Method for Bulk Density ("Unit Weight") and Voids in Aggregate, ASTM International, West Conshohocken, PA (2009).

ASTM C 642 – 13, Standard Test Method for Density, Absorption, and Voids in Hardened Concretes, ASTM International, West Conshohocken, PA (2013).

ASTM C39–14a, “Standard Test Method for Compressive Strength of Cylindrical Concrete Specimens.” ASTM International, West Conshohocken, PA (2005).


Refbacks

  • There are currently no refbacks.