Influence of Pulverized Animal Bone and Animal Bone Ash on the Mechanical Properties of Normal Strength Concrete using Response Surface Method

IF 3.1 Q2 CONSTRUCTION & BUILDING TECHNOLOGY Construction Innovation-England Pub Date : 2023-04-27 DOI:10.15282/construction.v3i1.9097
Konitufe Claudius, Abubakar Sabo Baba, A. Abubakar
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Abstract

Global warming, improper solid waste and environment degradations are the major challenges facing humankind. One way to lower the effect global warming is to use less energy intensive materials optimally in construction and proper solid waste disposals to protect the environment from it harmful effects. In this study, the mechanical properties of Pulverized Animal Bone (PAB) and Pulverized Animal Bone Ash (PABA) as cement replacement in concrete were examined and the mechanical properties of concrete containing PAB/PABA optimised using response surfaces methodology (RSM). Central composite Design (CCD) method of experimental design of RSM was used to design the experiment using the key variables in the mechanical properties of Pulverised Animals Bone Ash concrete (PABC) and Pulverised Animals Bone Concrete Ash (PABAC). The variables considered in the model’s development are Bone powders percentages replacement of cement in concrete at five levels (5, 10, 15, 20 and 25% levels) and curing age (3, 7, 28, 60 and 90-days). The Test conducted on fresh PABC/BAPAC was slump test while on hardened concrete were, Density, water absorption and compressive strength tests. Analysis of variance (ANOVA) indicates that the variables PAB/PABA and curing age influence the variability in the generated models and all the models are statistically significant at 95% level in all the factors levels. Numerical method of optimisation was applied to determine optimum mix proportions for PABC/PABAC.  The optimum mix for PABC was obtained by addition of 5.00% PAB after curing for 42.24-days with 0.736 desirability. In PABAC, 5.00% PABA and 44.87-days curing with desirability 0.736 was the optimum.
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用响应面法研究动物骨粉和动物骨灰对正强混凝土力学性能的影响
全球变暖、固体废物不当和环境退化是人类面临的主要挑战。降低全球变暖影响的一种方法是在建筑中尽量减少能源密集型材料的使用,并妥善处理固体废物,以保护环境免受其有害影响。在本研究中,研究了动物骨粉(PAB)和动物骨粉(PABA)作为水泥替代品在混凝土中的力学性能,并使用响应面法(RSM)优化了含有PAB/PABA的混凝土的力学性能。采用RSM试验设计的中心复合设计(CCD)方法,选取动物骨粉混凝土(PABC)和动物骨粉混凝土(PABAC)力学性能的关键变量进行试验设计。模型开发中考虑的变量是骨粉在五个水平(5、10、15、20和25%水平)和养护年龄(3、7、28、60和90天)下混凝土中水泥的替代百分比。对新鲜PABC/BAPAC进行坍落度试验,对硬化混凝土进行密度、吸水率和抗压强度试验。方差分析(ANOVA)表明,PAB/PABA和年龄对模型的变异性有影响,所有模型在所有因素水平上均在95%水平上具有统计学显著性。采用数值优化方法确定了PABC/PABAC的最佳配比。固化42.24 d后,PAB添加量为5.00%,最佳配比为0.736。PABA用量为5.00%,养护时间为44.87 d,最佳养护时间为0.736。
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来源期刊
Construction Innovation-England
Construction Innovation-England CONSTRUCTION & BUILDING TECHNOLOGY-
CiteScore
7.10
自引率
12.10%
发文量
71
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