Abstract
One of the most prominent construction materials for walls in the Philippines is the concrete hollow blocks or CHB due to their lower cost than other available materials and the ease of production and installation. To manage our energy and resources, including waste, carbonized biomass as a bonding agent for CHB production was studied to aid in the country's growing need forconstruction materials . On-site fabricated CHB with several percent of carbonized biomass (CB) as substitutes for sand (0%, 20%, and 50% CB), including commercial CHB, are subjected to volume, weight, density determination, and ultimate compressive strength test. The gathered data undergo analysis through one-way ANOVA to determine the difference among the gathered compressive strength of CHB produced with different percentages of carbonized biomass. Cost analysis was also done to determine the costs and profitability of the CHB. As a result, the CHB with carbonized biomass as bonding agent produced CHB with low density, ultimate compressive strength better than commercially available CHB (with proper curing applied), and can be more profitable with increasing the carbonized biomass content.
Highlights
The Philippines has one of the most dynamic economies in Southeast Asia, with a gross domestic product of $284.8 billion in 2017 and an average growth rate of more than 5% in the past decade
The construction industry is one of the top contributors to the country's growing economy, strengthened by the current government's "Build Build Build Program" that aims to usher in the "Golden age of Construction" and increase public infrastructure expenditure from an average of 2.9 percent of gross domestic product (GDP) during the Aquino regime to about 7.3 percent at the end of the Duterte administration
The sample with the least density is the Concrete Hollow Block (CHB) produced with 50% carbonized biomass
Summary
The Philippines has one of the most dynamic economies in Southeast Asia, with a gross domestic product of $284.8 billion in 2017 and an average growth rate of more than 5% in the past decade. The construction industry is one of the top contributors to the country's growing economy, strengthened by the current government's "Build Build Build Program" that aims to usher in the "Golden age of Construction" and increase public infrastructure expenditure from an average of 2.9 percent of gross domestic product (GDP) during the Aquino regime to about 7.3 percent at the end of the Duterte administration. One of the most prominent construction materials for walls in the Philippines is concrete hollow blocks or CHB. The Philippines is an extensively agricultural country, with 23% of its workforce constitutes the country's agricultural sector and accounting for 8.1% of the 2018 GDP. This became grounds for increased production of organic and agricultural wastes in the country. Increased effort to cultivate these organic wastes to a more productive output is a growing concern for the country
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