5TH International Congress on Technology - Engineering & Science - Kuala Lumpur - Malaysia (2018-02-01)

Utilization Of Agro-waste In Cement Mortar

The maintenance and improvement of living conditions requires a particular focus on ecology and environmental protection worldwide. This is why research in all activity areas is aimed at identifying new strategies and means for solving energy and environmental problems. The construction sector has a major environmental impact due to resulting waste, occupation of land, air pollution and influence on biodiversity. This requires new approaches in the construction of buildings and the manufacture of building materials. The high cost of cement, used as binder, in the production of mortar and concrete has led to a search for alternative. In addition to cost, high energy demand and emission of CO2, which is responsible for global warming, are disadvantages associated with cement production. The use of waste for the manufacture of building materials is an effective way to reduce the consumption of material resources and at the same time, to significantly reduce the negative environmental impact [1]. The economic and environmental problems result from agricultural waste materials. The main objective of the present investigation is to assess the usefulness of agricultural waste in mortar. This study aims to study the effect of agro-waste as partial replacement of cement on the properties of cement mortar. For the production of mortars were used rilem sand, cement and water. Cement type used in this study was CEM I 42.5. It was tested in accordance with TS EN 197-1 [2]. The sand used in this research was of standard Rilem Cembureau type. Agro-waste ash was used in this study. For this purpose, The agro waste replacements were (0%, 2%, 4% and %8) by weight. At first, cement, water and agro waste ash were put in a mortar mixer and mixed for 30 second. After that the rilem sand was added and mixing was done for 30 s. The mixer was stopped after 90 s. The mortar adhered to the sides and bottom of the cabinet was peeled off and collected in the middle of the cabin, and mixing was continued for 60 s. Prismatic samples (40*40*160 mm) were cast and cured for 28 days. Compressive and bending strength of mortar was investigated and all experiment result were compared with each other. The compressive and bending strength were carried out after at 28 days of curing age in accordance with TS EN 196-1 [3]. The results showed that the result of the 28 days of compressive strength of control sample exhibits higher values up to 28 days age than all other samples having agro-waste ash. We recorded a fall of compressive strength at 28 days about 6 and 9 % for the mortars containing 2 and 4 % of waste respectively. As the agro-waste ash is an agricultural residue and naturally available, it can lower the construction cost. Keywords: Agro-waste, Mortar, Strength
Aylin AKYILDIZ