Evaluation of mortar properties obtained through partial substitution of Portland cement by ashes of oil palm empty fruit bunch

Abstract

Currently, palm oil is a leader in production and consumption among commercial edible oils, with a growing world production that exceeds 66 million tons per year. It is estimated that the generation of residues from the burning of palm oil empty fruit bunches as fuel in the boilers corresponds to 5% in mass of the total of oil extracted. This work evaluated the mechanical properties resulting from the use of the empty fruit bunch ashes as a partial substitute of Portland cement in mortars in different contents in 1:3 and 1:6 mixes. Mortars obtained with the use of ash presented greater deformability, implying greater workability. The results obtained pointed to potential use of the ash as filler in mortars without loss on compressive strength for contents up to 10% in the 1:3 mix and 5% in the 1:6 mix. It was observed an increase in the void index and the water absorption capacity, with a proportional reduction of the flexural strength.

Performance of Asphalt Mixture Incorporating Oil Palm Fruit Ash as Modified Binder

“…Malaysia is one of the largest palm oil producers other than Indonesia and Thailand which successfully generates almost 32% of the palm oil supply [37], [38]. There are about 5% of the oil palm fruit ash (OPFA) are produced as a solid by-product of palm oil mill during the process of burning fruitlets mesocarp and will be directly disposed to the landfills [39]. Hence, using OPFA as a natural material replacement or additive in pavement might help to reduce the environmental problems and improve the performance of the pavement.…”

Desenvolvimento de argamassa álcali-ativada baseada em cinzas de caldeira de dendê e queima de madeira

“…Cinzas de caldeiras da agroindústria do dendê, conhecidas por apresentar bom desempenho pozolânico como material complementar ao cimento Portland (APRIANTI et al, 2015;COELHO et al, 2019), têm atraído atenção para seu potencial uso como precursor para a álcali-ativação graças à elevada quantidade de silício em sua constituição e seu alto volume de produção mundial (KABIR et al, 2017).…”

Evaluating the effects of agricultural wastes on concrete and composite mechanical properties: a review

“…AEFOPF is commonly used to enhance its concrete properties. Its straw -fiber will control pore formation when use in concrete [59]. Figure 9 shows the images of empty bunch of oil palm, a single of oil palm-empty fruit bunch and the processed oil palm-empty fruitbunches.…”