Autoclaved aerated concrete (AAC) is a light-weight cementitious product of sand, water, cement, lime and aluminium powder mix, used globally for brickwork. The AAC blocks in vogue have smooth surfaces, due to which they have less bond strength than that of traditional clay bricks. This work asserts that the shear bond strength of AAC masonry can be enhanced by using grooved AAC blocks. The compressive strength of the grooved AAC block as well as the shear bond and compressive strengths of the masonry have been investigated experimentally and compared with conventional AAC blocks and masonry. The study clearly demonstrated the superiority of grooved AAC blocks to conventional AAC blocks. Simple analytical models have been developed to estimate the masonry compressive and shear bond strengths. Analytical models are capable of obtaining lower, upper and most likely estimates of strengths. Significance tests have been carried out to support the findings.

中文翻译：

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带槽的 AAC 砌块和砖石的压缩和剪切粘合强度

蒸压加气混凝土 (AAC) 是一种由沙子、水、水泥、石灰和铝粉混合而成的轻质水泥产品，在全球范围内用于砌砖。流行的AAC砖具有光滑的表面，因此它们的粘合强度低于传统粘土砖的粘合强度。这项工作断言，使用带槽的 AAC 砌块可以提高 AAC 砌体的剪切粘合强度。已对带槽的 AAC 砌块的抗压强度以及砌体的剪切粘结和抗压强度进行了实验研究，并与传统的 AAC 砌块和砌体进行了比较。该研究清楚地证明了凹槽 AAC 砌块比传统 AAC 砌块的优越性。已经开发了简单的分析模型来估计砌体的抗压和抗剪粘结强度。分析模型能够获得更低、优势的上限和最可能的估计。已经进行了显着性测试以支持这些发现。