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Influence of burning temperatures on mechanical properties of clay bricks | |
Author | Joshi, Madhav |
Call Number | AIT Thesis no.ST-87-12 |
Subject(s) | Bricks--Testing |
Note | A thesis submitted in partial fulfillment of the requirements for the degree of Master of Engineering, School of Engineering and Technology |
Publisher | Asian Institute of Technology |
Abstract | Bricks were made by firing the moulded green bricks in a ferrocement incinerator by using rice husk as fuel. The mechanical properties of bricks which were investigated included the compressive strengths and absorption capacities of bricks burnt at different temperatures and for various durations of burning. In the second half of the research programme the well burnt bricks were ground into powder and this powder was used to replace 35 and 50 percent of cement by weight. Tests for compressive strengths at different ages and resistance against chemical attack of the burnt clay brick powder - cement mortars were performed. Test results indicated that the compressive strengths of clay bricks subjected to different temperatures of burning are influenced by the magnitude of temperature and duration of burning. Higher temperature and longer duration of burning increase brick strength. The test results also indicated that the reactivity of clay brick powder increases with an increase in the duration of burning. It is evident that the clay brick powder ground from bricks subjected to a burning duration of 20 days can be used as a pozzolana. According to ASTM Specifications, the clay brick powder used in this study can be classified as Pozzolana class N. Burnt clay brick powder can be used as a partial replacement in mortar . When burnt clay brick powder does not exceed 35 percent by weight of the blended cement, t he compressive strength at 28 days is higher than that of Portland cement mortar. Moreover, burnt clay brick powder has a fairly high acid resisting quality especially when sulphuric acid is involved. Due to this acid resisting quality it may be advantageously used in an area prone to chemical attack. |
Year | 1987 |
Type | Thesis |
School | School of Engineering and Technology (SET) |
Department | Other Field of Studies (No Department) |
Academic Program/FoS | Structural Engineering (STE) /Former Name = Structural Engineering and Construction (ST) |
Chairperson(s) | Pichai Nimityongskul |
Examination Committee(s) | Chauhan, Roshan Lal ;Jearkjirm, Vithool |
Scholarship Donor(s) | German Academic Exchange Service (DAAD) |
Degree | Thesis (M.Eng.) - Asian Institute of Technology, 1987 |