Mechanical Properties of Local Cement-Clay Interlocking Bricks in Central Part of Thailand

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Panuwat Joyklad


This paper presents the findings of an experimental investigation performed on cement-clay interlocking (CCI) hollow bricks made using cement and clay, by conventional method.  In Thailand, these CCI bricks are made in different regions by using locally available clay and there is no standard mix design to prepare bricks. Therefore, CCI brick samples were collected from different three regions of Thailand to study the influence of locally available clay and mix design ratio on the mechanical properties of CCI bricks. Mechanical properties such as compressive strength, splitting tensile strength, modulus of rupture and water absorption were determined. Results show that each region is following different mix design ratio based on availability of local materials and knowledge. It was also observed that locally available materials and mix design ratio has a significant effect on the mechanical properties of CCI bricks. The compressive strength of CCI bricks was observed between 4.22 MPa to 16.40 MPa. A large variation in the values of splitting tensile strength, modulus of rupture and absorption were also observed for different regions. This study indicates that there is an urgent need to establish and enforce standard guidelines for codes for CCI brick manufacturing process in Thailand.

Article Details

How to Cite
P. Joyklad, “Mechanical Properties of Local Cement-Clay Interlocking Bricks in Central Part of Thailand”, sej, vol. 13, no. 1, pp. 1–12, Aug. 2018.
Research Articles


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