Implementation of One Dimensional Finite Difference Heat Conduction Method to Quantity Heat Transfer through Lightweight Cellular Mortar

 
 
 
  • Abstract
  • Keywords
  • References
  • PDF
  • Abstract


    This paper accounts the origin of Finite Difference technique (one dimensional) to determine thermal performance of lightweight cellular mortar. This paper will also assimilate the execution of the technique and the reasoning of thermal properties model of lightweight cellular mortar. For this work, a one dimensional finite difference heat conduction simple excel program had been developed to foresee the temperature enlargement via the width of the lightweight cellular mortar system, based on initial approximation of the thermal conductivity properties in relation to the temperature growth in the model as a function of the cellular mortar porosity and the effect of radiation and heat emission surrounded by the voids inside the cement matrix. The accuracy of the developed simple model was then evaluated by equalling prophesied and measured temperature growth assimilated from prototype heat transfer assessment on lightweight cellular mortar system to facilitate the temperature growth of the sample premeditated by the program meticulously bouts those verified through the experimental procedure.  

     


  • Keywords


    Cellular mortar; Heat transfer; High temperatures; Specific heat; Thermal conductivity

  • References


      [1] Anderberg Y, Thelandersson S. 1976. Stress and deformation characteristics of concrete at high temperatures. Lund Institute of Technology, Division of Structural Mechanics and Concrete Construction, Bulletin 54.

      [2] Ang CN, Wang YC. 004. The effect of water movement on specific heat of gypsum plasterboard in heat transfer analysis under natural fire exposure. Construction and Building Materials 18, No.7, 505-515.

      [3] American Society for Testing and Materials. Standard test method for steady-state heat flux measurements and thermal transmission properties by means of the guarded-hot-plate apparatus, 1997, ASTM C 177-97.

      [4] Madandoust R, Ranjbar MM, Moghadam HA, Mousavi SY. 2011. Mechanical properties and durability assessment of rice husk ash concrete. Biosystems Engineering, 110(2), 144-152.

      [5] BSI British Standards. Cement: Composition, Specifications and conformity criteria for low heat common cements. BSI, London, 2000, BS EN 197-1.

      [6] BSI British Standards. Aggregates for Concrete. BSI, London, 2002, BS EN 12620.

      [7] Soleimanzadeh S, Othuman Mydin MA. 2013. Influence of High Temperatures on Flexural Strength of Foamed Concrete Containing Fly Ash and Polypropylene Fiber. International Journal of Engineering. 26(1): 365-374

      [8] Othuman Mydin MA, Wang YC. 2012. Mechanical Properties of Foamed Concrete Exposed to High Temperatures. Journal of Construction and Building Materials. 26(1): 638-654

      [9] Cabrera, J. G., and Lynsdale, C. J. (1988). A new gas permeameter for measuring the permeability of mortar and concrete. Magazine of Concrete Research 40, No. 144, 177-182.

      [10] British Standards Institution. Eurocode 2: Design of concrete structures, Part 1.2: General rules - Structural fire design. BSI, London, 2004, BS EN 1992-1-2.

      [11] Othuman Mydin MA. 2013. An Experimental Investigation on Thermal Conductivity of Lightweight Foamed concrete for Thermal Insulation. Jurnal Teknologi. 63(1): 43-49

      [12] Hertz KD. 2005. Concrete strength for fire safety design. Magazine of Concrete Research 57, No. 8, 445-453.

      [13] Othuman Mydin MA, Wang YC. 2012. Thermal and Mechanical Properties of Lightweight Foamed Concrete (LFC) at Elevated Temperatures. Magazine of Concrete Research. 64(3): 213-224

      [14] Hoff GC. 1972. Porosity-strength considerations for cellular concrete. Journal of Cement and Concrete Research 2, No. 1, 91-100.

      [15] Kearsley EP, Wainwright PJ. 2002. The effect of porosity on the strength of foamed concrete. Journal of Cement and Concrete Research 32, No. 2, 233-239.

      [16] Khennane A, Baker G. 1993. Uniaxial model for concrete under variable temperature and stress, Journal of Engineering. Mechanics (ASCE) 119, No. 8, 1507-1525.

      [17] Li L, Purkiss JA. 2005. Stress–strain constitutive equations of concrete material at elevated temperatures. Journal of Fire Safety 40, No. 7, 669-686.

      [18] Li W, Guo Zh H. 1993. Experimental investigation on strength and deformation of concrete under high temperature. Journal of Building Structures (China) 14, No. 1, 8-16.

      [19] Lie TT, Lin TD. 1985. Fire performance of reinforced concrete columns, Fire Safety: Science and Engineering, In: ASTM STP 882, 176-205.

      [20] Lu Zh D. 1989. A Research on fire response of reinforced concrete beams. PhD thesis, Tongji University, 1989.

      [21] Nambiar, E. K. K., and Ramamurthy, K. (2008). Models for strength prediction of foam concrete. Journal of Materials and Structures 41, No. 2, 247-254.

      [22] Othuman Mydin MA, Sahidun NS, Mohd Yusof MY, Md Noordin N. 2015. Compressive, Flexural And Splitting Tensile Strengths Of Lightweight Foamed Concrete With Inclusion Of Steel Fibre. Jurnal Teknologi. 7(5): 45-50

      [23] Narayanan N, Ramamurthy K. 2000. Prediction relations based on gel-pore parameters for the compressive strength of aerated concrete. Concrete Science and Engineering, RILEM, Vol.2, pp 206-212

      [24] Rahmanian I, Wang YC. 2009. Thermal Conductivity of Gypsum at High Temperatures, A Combined Experimental And Numerical Approach. Proceedings of International Conference Applications of Structural Fire Engineering, Prague, pp 152-157.


 

View

Download

Article ID: 11893
 
DOI: 10.14419/ijet.v7i2.23.11893




Copyright © 2012-2015 Science Publishing Corporation Inc. All rights reserved.