Mahogany and golden shower fruit pod fly ash as partial replacement for cement Brent Jo I. Carigma...[et.al].

Thesis (Bachelor of Science in Civil Engineering) -- University of Rizal System-Morong.

EXECUTIVE SUMMARY: In cement industries at present, the attempt to reduce the consumption of raw materials, to satisfy the protection of government for the environment, to enhance the quality of cement and to reduce the cost of production of Portland cement are being continuously considered as the crucial aspect of cement production. Thus, the study entitled Mahogany and Golden Shower Fruit Pod Fly Ash as Partial Replacement for cement aims to produce a certain economical material that will seek the above basis of cement production. The researchers used mahogany and golden shower fruit pods to produced fly ash that will replaced a certain percent of cement in concrete. To complete the intent of the study, the researchers employed experimental research design. This study is conducted to prove the effectiveness of using mahogany and golden shower fruit pod fly ash as partial replacement for cement. In that sense the chemical and physical properties of fly ash is determined. The chemical analysis of fly ash was based on ASTM-C618-78. The mahogany and golden shower fly ash was produced by burning the pods separately. The collected fly ash was strained using No. 100 sieve to obtain a fine powdery which is required for chemical analysis. At the same time, the weight of the powdered fly ash was determined for the percentage of weight which will be used for the concrete sample. Mahogany and Golden shower fly ashes are composed of the following compounds which are based on the chemical test: Silicon dioxide, Aluminum oxide, Iron oxide (SiO2+ Al2O3 + Fe2O3), Sulfur trioxide (SO3), Moisture Content, and Loss on Ignition. With these, the fly ashes were classified as Class F fly ash. Also, the physical property of the raw material was found to be acceptable as stated by the chemical analyst of GeoAnalytics, Inc. laboratory. The researchers then produces two (2) cylindrical concrete samples which comprised of 5% replacement of fly ash in cement for Sample A and 10% for sample B. As the concrete mixtures were made, before the making of the cylinders, it undergoes slump test to check its workability and the result shows that Sample B is workable than Sample A. The produced samples were subjected to compressive strength. As a result, Sample A passed the standard strength of 14 days curing. While Sample B has failed. Upon the production of the samples, cost analysis were conducted which shows that replacing a portion of cement with MGS fly ash is not that cost effective. Further study may be conducted that may substitute mahogany and golden shower fruit pod that belongs to the same family. Also, proper combustion must be done to produce authentic fly ash.