Setting process on mortars containing sugarcane bagasse ash

Abstract This paper presents an experimental study of the effect of partially replace of fine aggregate by sugarcane bagasse ash (CBA) in mortar mixtures in cement reactivity at early ages. The setting times and the initial development of the ultrasonic velocity for mortars produced at various water/cement ratios were evaluated. The objective of this study was to characterize the effects of the partial replacement of fine aggregate by sugarcane bagasse ash in the initial process of cement hydration. Therefore, the CBA used in this study went through different beneficiation processes, by grinding, reburning and sieving, with the objective of improve its features. The results suggest the viability of CBA use to accelerate cement hydration at early ages, with also an observed higher compressive strength.

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Influence of Physicochemical Properties of Sugarcane Bagasse Ash (SCBA) in Portland Cement Hydration

Key Engineering Materials ◽

10.4028/www.scientific.net/kem.765.324 ◽

2018 ◽

Vol 765 ◽

pp. 324-328

Author(s):

Tiago Assunção Santos ◽

José da Silva Andrade Neto ◽

Vitor Souza Santos ◽

Daniel Véras Ribeiro

Keyword(s):

Portland Cement ◽

Sugarcane Bagasse ◽

Cement Hydration ◽

New Technologies ◽

Pozzolanic Reaction ◽

Cement Industry ◽

Partial Replacement ◽

Cement Pastes ◽

Sugarcane Bagasse Ash ◽

Portland Cement Hydration

Due to the concern with the environmental impacts caused by the gases emitted by the cement industry and by the inadequate disposal of wastes generated in the sugar-alcohol industry, such as sugarcane bagasse ash (SCBA), a search for the development of new technologies, which are less aggressive to the environment and that propose feasible alternatives, began in order to reuse these wastes properly. Among these alternatives is the reuse of SCBA as partial replacement to cement or as addition to cementitious matrices. In this way, the present research has the objective of analyzing the influence of SCBA obtained by the calcination of sugarcane bagasse (SCB), at 600°C, in the process of Portland cement hydration. Initially, the SCBA was characterized physically, chemically and mineralogically, and then cement pastes with 20% and 35% substitution contents were elaborated, besides the reference paste, which were analyzed through X-ray diffraction (XRD) and thermogravimetric (TG) techniques. The results obtained show that there is a consumption of portlandite as a consequence of the use of SCBA, evidencing the pozolanicity of these ashes. In the pastes with 35% substitution content, there was an intense consumption of the portlandite, indicating, in this proportion, the pozzolanic reaction was more intense.

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Strength and Permeation Property of Concrete Made With Sugarcane Bagasse Ash and Granite Waste as Fine Aggregate Replacement

International Journal of Recent Technology and Engineering - 2 ◽

10.35940/ijrte.c4492.098319 ◽

2019 ◽

Vol 8 (3) ◽

pp. 1982-1988

Keyword(s):

Sugarcane Bagasse ◽

Particle Packing ◽

Industrial Wastes ◽

Partial Replacement ◽

Fine Aggregate ◽

River Sand ◽

Conventional Concrete ◽

Waste Concrete ◽

Concrete Production ◽

Sugarcane Bagasse Ash

Use of agro and industrial wastes in concrete production will cause sustainable concrete era and greener habitat. In this study an endeavor has been made to discover the propriety of Sugarcane Bagasse Ash (SCBA) and Granite Waste (GW) as partial replacement for traditional river sand. The percentage substitute is calculated based on the particle packing approach. The properties such as compressive, splitting tensile, flexural strengths and modulus of elasticity, water absorption, sorptivity and rapid chloride penetration test of the concrete with bagasse ash and granite waste as a partial replacement for river sand and to evaluate them with those of conventional concrete made with river sand fine aggregate are investigated. The test results show that the strength aspects of bagasse ash-granite waste concrete are higher than those of the conventional concrete. Moreover, they suggest that the bagasse ash-granite waste concrete has higher strength characteristics and remains in the lower permeability level shows improvement in overall durability of concrete than the conventional concrete.

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Experimental Study on Stabilisation of Clayey Soil Using Cement and Bagasse Ash

IOP Conference Series Earth and Environmental Science ◽

10.1088/1755-1315/889/1/012010 ◽

2021 ◽

Vol 889 (1) ◽

pp. 012010

Author(s):

Tarun Sharma ◽

Sandeep Singh

Keyword(s):

Experimental Study ◽

Sugarcane Bagasse ◽

Clayey Soil ◽

Critical Role ◽

Partial Replacement ◽

Percentage Increase ◽

Factors Affecting ◽

Soil Stabilisation ◽

Sugarcane Bagasse Ash ◽

Compaction Properties

Abstract In order for the foundation of building to be strong, the soil around it plays a critical role. So, researcher or engineer should have thorough knowledge about the factors affecting behaviour of soil which can be altered by the process of soil stabilisation. This study aims to investigate the applicability of SCBA (Sugarcane Bagasse Ash) to stabilize the clayey soil. Sugar factories produce waste after extraction of sugarcane gets brunt and the ash, hence produced is known as bagasse ash. Soil is treated with partial replacement of cement (3%, 6%, 9% and 12%) and with bagasse ash (2%, 4%, 6%and 8%). A total of 45 specimens were prepared in this study. Later those test specimens were evaluated for compaction properties. The results found after thorough study was that there was increase in the compaction properties with percentage increase in Sugarcane Bagasse Ash up to certain limit.

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