Production of Heat-Insulating Concrete Hollow Block
DOI:
https://doi.org/10.31272/jeasd.3084Keywords:
Insulation hollow block, Lightweight aggregate concrete, Light expanded clay aggregate, Thermal conductivityAbstract
Hollow concrete blocks are primarily used in residential buildings, factories, and multi-storied construction. The main goal is to produce a new insulation block from lightweight concrete by mixing light expanded clay aggregate (LECA) at a specified weight percentage with gravel. A trial-and-error method was used to determine the mixture ratio (cement: sand: lightweight aggregate) of (1:1.75:3.25) by weight, with a water-to-cement ratio of 0.48. Cubic, cylinder, and block samples were prepared with various volume proportions of LECA by natural coarse aggregate in percentages of (0, 50, and 75) %. Mechanical and physical properties, such as compressive and tensile strengths, density, and thermal conductivity, were investigated at ages 7, 14, and 28 days. The test results show that incorporating LECA reduces the density and compressive and tensile strengths, and enhances the blocks' insulating characteristics. Additionally, the thermal conductivity of the prepared specimens decreased by approximately 57% in blocks containing 75% LECA. The results are promising and indicate that the present insulation block can be used in composite slabs.
References
H. Varshney, “A review study on different properties of hollow concrete blocks,” Int. J. Eng. Res. Technol. (IJERT), vol. 4, no. 3, pp. 1-3. 2016.[Online]. Available: https://www.ijert.org/research/a-review-study-on-different-properties-of-hollow-concrete-blocks-IJERTCONV4IS03032.pdf
R. D. Oliveira, R. V. G. de Souza, A. J. M. Mairink, M. T. G. Rizzi, and R. M. da Silva, “Thermal Comfort for Users According to the Brazilian Housing Buildings Performance Standards,” Energy Procedia, vol. 78, pp. 2923–2928, Nov. 2015. doi: https://doi.org/10.1016/j.egypro.2015.11.668
Y. Zemicheal and Q. Houjun, “Design, analysis and development of improved hollow concrete block making machine,” Int. J. Eng. Res. Technol. (IJERT), vol. 9, no. 3, pp. 298–302, Mar. 2020.doi: https://doi.org/10.17577/IJERTV9IS030329
E. Sassine, Y. Cherif, J. Dgheim, and E. Antczak, “Experimental and Numerical Thermal Assessment of Lebanese Traditional Hollow Blocks,” International Journal of Thermophysics, vol. 41, no. 47, Feb. 2020. doi: https://doi.org/10.1007/s10765-020-02626-7
J. Ndikumana, R. J. Kashinga, and G. S. Kumaran, “A review study on the effects of cell geometry in the shape of hollow concrete blocks on their properties,” in Proc. Int. Conf. Advancements in Construction Materials (ICACM), AIP Conf. Proc. vol. 3146, Issue 1, 2024.doi:https://doi.org/10.1063/5.0224878
C. Caruana, C. Yousif, S. Buhagiar, and C. Grima, “Development of a thermally improved hollow concrete block,” in Proc. Sustainable Energy 2015: ISE Annu. Conf., 2015.[Online]. Available: https://www.um.edu.mt/library/oar//handle/123456789/23098
A. P. Chaure, P. A. Shinde, H. M. Raut, P. D. Dudhal, and R. G. Khotkar, “Hollow concrete blocks,” Int. J. Adv. Res. Innov. Ideas Educ. (IJARIIE), vol. 4, Issue 1, pp.1-9. 2018. https://ijariie.com/AdminUploadPdf/HOLLOW_CONCRETE_BLOCKS_ijariie7222.pdf
F. Khan, “Investigative study on the properties of hollow concrete blocks,” Int. J. Innov. Res. Comput. Sci. Technol. (IJIRCST), vol. 9, no. 1, pp. 49–58, Jan. 2022.doi:https://doi.org/10.55524/ijircst.2022.10.1.9
M. Lu, A. E. Schultz, and H. K. Stolarski, “Influence of cavity dimension on the stability of eccentrically loaded slender unreinforced masonry hollow walls,” Constr. Build. Mater., vol. 25, no. 12, pp. 4444–4453, 2011. doi: https://doi.org/10.1016/j.conbuildmat.2011.04.001
L. M. Lagemann, H. L. Silva, L. Turatti, and R. Spinelli, “Analysis of the thermal behavior of masonry concrete block with internal natural element coating,” Int. J. Adv. Eng. Res. Sci. (IJAERS), Vol. 10, No. 5, pp.17-27. 2023.[Online]. Available: https://ijaers.com/uploads/issue_files/2IJAERS-0520234-Analysisof.pdf
M. A. Fogiatto, G. H. Santos, and N. Mendes, “Thermal transmittance evaluation of concrete hollow blocks,” in Proc. 12th Int. Conf. Heat Transfer, Fluid Mech. Thermodynamics, 2016. [Online]. Available https://repository.up.ac.za/bitstreams/b05c2b6e-1c31-4272-86a0-f81bb7914e66/download
B. Ye and H. Zhou, “Thermal performance analysis of concrete small hollow block,” IOP Conf. Ser..: Mater. Sci. Eng., vol. 556, pp. 012041 2019. doi: https://doi.org/10.1088/1757-899X/556/1/012041
M. Mithra and I. Padmanaban, “Review on lightweight concrete using LECA,” Int. Res. J. Eng. Technol. (IRJET), vol. 8, no. 4, Apr. pp. 3776-3778. 2021.[Online]. Available: https://www.irjet.net/archives/V8/i4/IRJET-V8I4717.pdf
B. R. Vinod, H. J. Surendra, and R. Shobha, “Lightweight concrete blocks produced using expanded polystyrene and foaming agent,” Mater. Today: Proc., vol. 52, pt. 3, pp. 1666–1670, 2022. doi: https://doi.org/10.1016/j.matpr.2021.10.503
M. K. Yew, M. C. Yew, and J. H. Beh, “Effects of recycled crushed light expanded clay aggregate on high-strength lightweight concrete,” Materials Int., vol. 2, no. 3, pp. 311–317, 2020. doi: https://doi.org/10.33263/Materials23.311317
S. A. Rao, N. Priyanka, D. Kavitha, G. M. Rao, and T. R. Vamsi, “Explorations into the expanded clay aggregate concrete bricks' strength properties,” Int. J. Innov. Res. Eng. Manag. (IJIREM), vol. 9, no. 6, pp. 55–59, 2022. https://doi.org/10.55524/ijirem.2022.9.6.9
B. Ayati, V. Ferrándiz-Mas, D. Newport, and C. Cheeseman, “Use of clay in the manufacture of lightweight aggregate,” Constr. Build. Mater., vol. 162, pp. 124–131, 2018. doi: https://doi.org/10.1016/j.conbuildmat.2017.12.018
A. Kumar and P. Prakash, “Studies on structural lightweight concrete by blending lightweight aggregates,” Int. J. Innov. Res. Eng. Manag. (IJIREM), vol. 2, no. 4, pp. 48–52, Jul. 2015.doi: https://doi.org/10.13140/RG.2.2.26257.53600
K. Murugan, M. Palaniappan, and K. K. Kalappan, “Experimental studies on light weight concrete using LECA material,” Mater. Today: Proc., vol. 74, part. 4, 2023, pages 1035-1041.doi: https://doi.org/10.1016/j.matpr.2022.11.467
T. J. Mohammed, I. F. Nasser, and I. A. Saeed, “Influence of Expanded Clay Aggregate on Various Properties of Lightweight Concrete Tiles,” Int. Rev. Civ. Eng., vol. 12, no. 2, pages 85-92. 2021. doi: https://doi.org/10.15866/irece.v12i2.18505
Z. K. Abbass and S. M. Selman, “The use of lightweight aggregate in concrete: A review,” J. Eng., vol. 28, no. 11, pages 1-13. 2022. doi: https://doi.org/10.31026/j.eng.2022.11.01
R. Mlih et al., “Light-expanded clay aggregate (LECA) as a substrate in constructed wetlands—A review,” Ecol. Eng., vol. 148, pages 105783, 2020. doi: https://doi.org/10.1016/j.ecoleng.2020.105783
A. M. Rashad, “Lightweight expanded clay aggregate as a building material—An overview,” Constr. Build. Mater., vol. 170, pp. 757–775, May 2018. doi: https://doi.org/10.1016/j.conbuildmat.2018.03.009
Central Organization for Standardization and Quality Control (COSQC), Iraqi Specification No. 5: Portland Cement, Baghdad, Iraq, 2019.
Central Organization for Standardization and Quality Control (COSQC), Iraqi Specification No. 45: Aggregate from Natural Sources for Concrete and Construction, Baghdad, Iraq, 1984.
A. Zukri, R. Nazir, K. N. M. Said, and H. Moayedi, “Physical and mechanical properties of lightweight expanded clay aggregate (LECA),” MATEC Web Conf., vol. 250, 01016, 2018. doi: https://doi.org/10.1051/matecconf/201825001016
ASTM C332-17, Standard Specification for Lightweight Aggregates for Insulating Concrete, ASTM International, West Conshohocken, PA, USA, 2017.
ASTM C567-05, Standard Test Methods for Determination of Density of Structural Lightweight Concrete, ASTM International, West Conshohocken, PA, USA, 2005.
A. Saber and A. k. Al-Asadi, “Mechanical properties of lightweight expanded clay aggregate (LECA) concrete,” Sci. Rev. Eng. Environ. Sci., vol. 31, no. 3, pp. 161–175, 2022. doi: https://doi.org/10.22630/srees.3150
ASTM C129-17, Standard Specification for Non-Load-Bearing Concrete Masonry Units, ASTM International, West Conshohocken, PA, USA, 2017.
ASTM C140/C140M-21, Standard Test Methods for Sampling and Testing Concrete Masonry Units and Related Units, ASTM International, West Conshohocken, PA, USA, 2021.
Central Organization for Standardization and Quality Control (COSQC), Iraqi Standard No. 1107: Materials Specification and Construction Work, Ministry of Planning, Baghdad, Iraq, 1987.
KYOTO Electronics Manufacturing Co., Ltd., Quick Thermal Conductivity Meter (QTM-500) Operation Manual, Japan, 2014.
J. Al-Fakhoury, E. Sassine, Y. Cherif, J. Dgheim, E. Antczak, and T. Chartier, “Analysis of heat transfer phenomena inside concrete hollow blocks,” J. Build. Mater. Sci., vol. 4, no. 1, pp. 21-33. 2022. doi: https://doi.org/10.30564/jbms.v4i1.4500
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