Comparative Study on the Mechanical Strength of SAP Internally Cured Concrete

Abstract

To investigate the relationships between the different mechanical strengths of internally cured concrete with Super Absorbent Polymer (SAP concrete), the uniaxial mechanical properties of SAP concrete with different internal curing water-cement ratios were studied. Various SAP concrete specimens were prepared, and the uniaxial compressive, splitting tensile, as well as four-point bending tests, were carried out using the electro-hydraulic servo testing machine. The cubic compressive strength, splitting tensile strength, and flexural strength of SAP concrete with different internal curing water-cement ratios was obtained. The converting relationships between the internal curing water-cement ratio and different mechanical strengths were analyzed extensively. Based on the conversion formulas of different strength indexes proposed by different national standards and other researchers, the equations among the splitting tensile strength, cubic compressive strength, and flexural strength of SAP concrete were proposed and verified using the experimental data. According to the comparative analysis results, the proposed equations in this study have significant applicability and can be conducted in the practical application of SAP concrete.

Experimental Prognostication of Ultra-High-Performance Lightweight Hybrid Fiber-Reinforced Concrete by Using Sintered Fly Ash Aggregate, Palm Oil Shell Aggregate, and Supplementary Cementitious Materials

“…We also concluded from Figure 9 that our current study’s LWHFRC regression value is close to 0.8426, and the present study graph was similar to a normal concrete ACI 318-14 graph. However, the other normal concrete relationship graphs were higher than the current study graph [ 33 , 34 , 35 ].…”

“…From Figure 10 , we also concluded that our present study’s LWHFRC regression value is nearly 0.8875, and the present study graph was too much higher than other graphs for normal concrete [ 33 , 34 , 35 ].…”

Durability Evaluation of Calcined Clay and Limestone Powder Blended Ternary Self-Compacting Concrete

“…Granted that although concrete is not typically designed to resist direct tension, the knowledge of tensile strength is used to estimate the load under which cracking will develop. This is due to its influence on the formation of cracks and its propagation to the tension side of the reinforced concrete flexural members [25,26], hence the importance of tensile strength testing. This test was carried out using diameter 100 by 200 cylinders at 7 and 28 days using the split tensile strength test by crushing the cylinders longitudinally on a compressive strength test machine in line with the provisions of [27].…”

Synergistic Effects of SAP, Limestone Powder and White Cement on the Aesthetic and Mechanical Properties of Fair-Faced Concrete

“…Furthermore, SAP play a key role in modulating the hydration process of concrete [20]. They possess the capability to absorb vast amounts of water and release it as the concrete starts drying, helping in the mitigation of crack formation [21][22][23][24]. The inclusion of SAP has been noted to considerably improve both the compressive and flexural strength of concrete, making it more adaptable for various architectural applications [25][26][27][28].…”