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Review
. 2021 Aug 20;14(16):4690.
doi: 10.3390/ma14164690.

Survey of Mechanical Properties of Geopolymer Concrete: A Comprehensive Review and Data Analysis

Azad A Mohammed  1 , Hemn Unis Ahmed  1 , Amir Mosavi  2
Affiliations
Review

Survey of Mechanical Properties of Geopolymer Concrete: A Comprehensive Review and Data Analysis

Azad A Mohammed et al. Materials (Basel). .

Abstract

Mechanical properties and data analysis for the prediction of different mechanical properties of geopolymer concrete (GPC) were investigated. A relatively large amount of test data from 126 past works was collected, analyzed, and correlation between different mechanical properties and compressive strength was investigated. Equations were proposed for the properties of splitting tensile strength, flexural strength, modulus of elasticity, Poisson's ratio, and strain corresponding to peak compressive strength. The proposed equations were found accurate and can be used to prepare a state-of-art report on GPC. Based on data analysis, it was found that there is a chance to apply some past proposed equations for predicting different mechanical properties. CEB-FIP equations for the prediction of splitting tensile strength and strain corresponding to peak compressive stress were found to be accurate, while ACI 318 equations for splitting tensile and elastic modulus overestimates test data for GPC of low compressive strength.

Keywords: compressive strength; data analysis; elastic modulus; flexural strength; geopolymer concrete; mechanical properties; review; splitting tensile strength; state of the art; survey.

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Conflict of interest statement

The authors declare no conflict of interest.

Figures

Figure 1
Figure 1
The flow chart diagram process followed in this study.
Figure 2
Figure 2
Variation of splitting tensile strength with compressive strength of GPC.
Figure 3
Figure 3
Variation of flexural strength with compressive strength of GPC.
Figure 4
Figure 4
Variation of elastic modulus with compressive strength of GPC.
Figure 5
Figure 5
Variation of coefficient of determination for different properties.
Figure 6
Figure 6
Variation of splitting tensile strength with compressive strength.
Figure 7
Figure 7
Splitting tensile strength data scatter and proposed equations.
Figure 8
Figure 8
Variation of flexural strength with compressive strength.
Figure 9
Figure 9
Flexural strength data scatter and proposed equations.
Figure 10
Figure 10
Variation of Elastic modulus with compressive strength.
Figure 11
Figure 11
Elastic modulus data scatter and proposed equations.
Figure 12
Figure 12
Elastic modulus- x relationship.
Figure 13
Figure 13
Test and calculated elastic modulus of GPC.
Figure 14
Figure 14
Variation of Poisson’s ratio with compressive strength of GPC.
Figure 15
Figure 15
Variation of normalized Poisson’s ratio with compressive strength.
Figure 16
Figure 16
Variation of strain corresponding to peak stress with compressive strength of GPC.
Figure 17
Figure 17
Variation of normalized εo with compressive strength of GPC.
See this image and copyright information in PMC

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