Effects of Sugarcane's Bagasse Ash Additive on Portland Cement Properties (original) (raw)
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This paper presents the use of sugarcane bagasse ash (SCBA) as a pozzolanic material for producing high-strength concrete. The utilization of industrial and agricultural waste produced by industrial processes has been the focus on waste reduction. Ordinary Portland cement (OPC) is partially replaced with finely sugarcane bagasse ash. In this research physical characteristics, chemical combination (XRF test), TG-DTA were investigated and compared with cement.The concrete mixtures, in part, are replaced with 0%, 10%,15%, 20%,25% and 30% of BA respectively. In addition, the compressive strength, the flexural strength, the split tensile tests were determined. The bagasse ash was sieved through No. 600 sieve. The mix design used for making the concrete specimens was based on previous research work from literature. The water –cement ratios varied from 0.44 to 0.63. The tests were performed at 7, 28,56 and 90 days of age in order to evaluate the effects of the addition SCBA on the concrete. The test result indicate that the strength of concrete increase up to 15% SCBA replacement with cement.
In developing countries, accumulation of unmanaged agricultural waste has resulted in an increased environmental concern. Recycling of such agricultural wastes is the viable solution not only to pollution problem, but also the problem of land filling. In view of utilization of agricultural waste in concrete and mortar, the present paper reviews, utilization of sugarcane bagasse ash (SCBA) in different compositions that were added to the raw material at different levels to develop sustainable concrete and mortar. Various physico-mechanical properties of the concrete and mortar incorporating sugarcane bagasse ash are reviewed and recommendations are suggested as the outcome of the study. The study in turn is useful for various resource persons involved in using SCBA material to develop sustainable construction material.
IAEME Publications, 2018
Sugarcane bagasse ash is a byproduct of sugar factories found after burning sugarcane bagasse which itself is found after the extraction of all economical sugar from sugarcane. The disposal of this material is already causing environmental problems around the sugar factories. On the other hand, the boost in construction activities in the country created shortage in most of concrete making materials especially cement, resulting in an increase in price. This study examined the potential use of sugarcane bagasse ash as a partial cement replacement material. In this study, bagasse ash sample was collected from Wonji sugar factory and its chemical properties were investigated. The bagasse ash was then ground until the particles passing the 63μm sieve size reach about 85% and the specific surface area about 4716 cm2/gm. Ordinary Portland cement and Portland Pozzolana cement were replaced by ground bagasse ash at dif erent percentage ratios. Normal consistency and setting time of the pastes containing Ordinary Portland cement and bagasse ash from 5% to 30% replacement were investigated. The compressive strengths of dif erent mortars with bagasse ash addition were also investigated. Four dif erent C-35 concrete mixes with bagasse ash replacements of 0%, 5%, 15% and 25% of the Ordinary Portland cement were prepared with water to cement ratio of 0.55 and cement content of 350kg/m3 for the control mix. The test results indicated that up to 10% replacement of cement by bagasse ash results in better or similar concrete properties and further environmental and economic advantages can also be exploited by using bagasse ash as a partial cement replacement material.
International Journal of Civil Engineering, 2017
One of the main challenges now confronting the concrete industry in India is to meet the demand posed by enormous infrastructure needs due to rapid industrialization and urbanization. With the shrinkage of natural resources to produce Ordinary Portland cement (OPC), increased use of suitable industrial waste materials having pozzolanic characteristics that can replace cement clinker is one of the ways to meet the challenge. Sugarcane bagasse is one such cement replacing pozzolanic material. The positive effect of using sugarcane bagasse in concrete includes Producing concrete of better rheology, higher strength and enhanced durability. Preservation of lime stone and coal reserves Minimizing greenhouse gas emissions associated with manufacturing of OPC. Considering the above beneficial effects of using sugarcane bagasse in concrete, this should be considered as resource material rather than an industrial waste. The present experimental investigation was carried on bagasse ash and has been chemically and physically characterized, and partially replaced in the ratio of 0%, 5%, 10%, 15% and 20% by weight of cement in concrete. The variable factors considered in this study were concrete of grade M60 for a curing period of 28 days, 60 days and 90 days of the concrete specimens in 1%, 3%, 5% H 2 SO 4 and HCl solution. Test for compressive strength at the age of 28days, 60days and 90days were conducted and results are presented.
Utilization of sugarcane bagasse ash in concrete as partial replacement of cement
IOP Conference Series: Materials Science and Engineering, 2017
This research addresses the suitability of sugarcane bagasse ash (SCBA) in concrete used as partial cement replacement. Two grades of concrete M15 and M20 were used for the experimental analysis. The cement was partially replaced by SCBA at 0%, 5%, and 10%, by weight in normal strength concrete (NSC). The innovative part of this study is to consider two grades of concrete mixes to evaluate the performance of concrete while cement is replaced by sugarcane bagasse ash. The cylindrical specimens having size 150 mm x 300 mm were used and tested after curing period of 7, 14 and 28 days. It was observed through the experimental work that the compressive strength increases with incorporating SCBA in concrete. Results indicated that the use of SCBA in concrete (M20) at 5% increased the average amount of compressive strength by 12% as compared to the normal strength concrete. The outcome of this work indicates that maximum strength of concrete could be attained at 5% replacement of cement with SCBA. Furthermore, the SCBA also gives compatible slump values which increase the workability of concrete.
Properties of Concrete Modified with Sugarcane Bagasse Ash and Stone Dust
2016
This study evaluates the suitability of sugarcane bagasse ash (SCBA) and stone dust (SD) as a partial replacement of Ordinary Portland Cement (OPC) in concrete. The sugarcane bagasse (SCB) is used as fuel in the boilers of many sugar factories in Bangladesh. The SCB burns at about 500°C to produce heat in such cases. According to the previous studies the chemical composition of SCBA and SD revealed that such by products are likely to be pozzolanic. Sugarcane bagasse ash and stone dust both were passed through 0.074mm sieve and used equal in amount to prepare a mix as a replacement OPC in concrete, then OPC was replaced by weight in ratio of 10%, 20% and 30%.The speciemen were tested for uniaxial compressive strength test, flexural strength and static elastic modulus test. The results shows that at 28 days specimen the compressive strength increased by 6% at 10% replacement of OPC. The flexural strength and modulus of elasticity were increased by 4% and 73% respectively for 10% repla...
The disposal of solid waste in open environment is a serious alarming concern that needs immediate attention from the researchers. The hazardous solid agro-industrial wastes which include: wheat straw ash, rice husk ash, corn cob ash and sugarcane bagasse ash (SCBA), having pozzolanic properties, have a versatile use in concrete. The solid pozzolana enhances the various concrete properties by the reaction of silicates with calcium hydroxide in the presence of water, which in result generate a saturated zone of calcium silicate hydrate (CSH) gel. This C-S-H gel reduces the amount of calcium hydroxide C(OH)2 during the hydration process of cement. Very limited research works have been done on concrete by partially replacing cement with SCBA. This research work was focused on evaluating the properties of concrete by partially replacing cement with SCBA at 0, 5, 10, and 15 percentages. Compressive strength, Strength activity index, and water absorption of all mixes were examined. And it was observed that all SCBA mixes showed an increase in compressive strength and at 10% replacement the strength activity index was at a peak of 115.67%, but all the SCBA mixes showed a strength activity index greater than 75% which satisfied the standard specification. The water absorption test for all SCBA mixes showed a slight increase in water absorption.
Evaluation of bagasse ash as supplementary cementitious material
The utilization of waste materials in concrete manufacture provides a satisfactory solution to some of the environmental concerns and problems associated with waste management. Agro wastes such as rice husk ash, wheat straw ash, hazel nutshell and sugarcane bagasse ash are used as pozzolanic materials for the development of blended cements. Few studies have been reported on the use of bagasse ash (BA) as partial cement replacement material in respect of cement mortars. In this study, the effects of BA content as partial replacement of cement on physical and mechanical properties of hardened concrete are reported. The properties of concrete investigated include compressive strength, splitting tensile strength, water absorption, permeability characteristics, chloride diffusion and resistance to chloride ion penetration. The test results indicate that BA is an effective mineral admixture, with 20% as optimal replacement ratio of cement.
Ordinary Portland Cement is recognized as a major construction material throughout the world. Researchers all over the world today are focusing on ways of utilizing either industrial or agricultural waste, as a source of raw materials for industry. This waste utilization would not only be economical, but may also result in foreign exchange earnings and environmental pollution. wastes, such as blast furnace slag, fly ash and silica fume are being used as supplementary cement replacement materials. A few studies have been carried out on the ashes obtained directly from the industries to study pozzolanic activity and their suitability as binders, partially replacing cement. This project analyses the effect of SCBA in concrete by partial replacement of cement at the ratio of 0%, 5%, 10%, 15% and 20% by weight by using magnesium sulphate solution. The bagasse is an important by-product of the sugar cane industry and most of it is used to produce steam and electricity in a co-generation plant at the ethanol plant.. This experimental study examines the compressive strength of concrete. The main ingredients used are Portland cement, SCBA, river sand, coarse aggregate and water. After mixing, concrete specimens were casted and subsequently all test specimens were cured in water at 7 days, 28days, 56days, 90days, and 180days.
EFFECT OF SUGARCANE BAGASSE ASH ON STRENGTH PROPERTIES OF CONCRETE
The present study focuses on the utilization of Sugarcane Bagasse Ash as replacement material for cement in concrete production. Sugarcane Bagasse ash contains high amorphous silica content and aluminium ion. For experimental investigations, Sugarcane bagasse ash and its chemical properties are obtained from KCP sugar factory, Andhra Pradesh. Ordinary Portland cement was partly replaced by sugarcane bagasse ash in the ratio of 0%, 5%, 10%, 15%, 20% and 25% by weight and the influence of Sugarcane bagasse ash as a partial replacement material has been examined on fresh concrete tests by Compaction factor test and Slump cone test as well as on hardened concrete with tests for Compressive strength, Split tensile strength, Flexural strength and Modulus of Elasticity. The results indicate that inclusion of Sugarcane Bagasse Ash in concrete up to 20% level significantly enhanced the strength of concrete. The highest strength was obtained at 10% Sugarcane bagasse ash replacement level.