Reactivity of intergrinding lime and rice husk ash and its applications in concrete | |
| Author | Rajani, Pritamdas |
| Call Number | AIT Thesis no. ST-84-19 |
| Subject(s) | Rice hulls Lime Building materials--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 | This study is conducted to develop a new ling of building material based essentially on lime and RHA for use in he rural areas of the developing countries where cement is not available. A ferrocement incinerator and the grinding machine developed earlier at the Asian Institute of Technology were used for burning and grinding of RHA. A simple and efficient way for the economical production of lime was investigated. An experimental program was conducted to determine the optimum proportion of lime and RHA, and the mixing method. Sodium aluminate and/or gypsum were added to improve the rate of development of strength of the mixes. the mechanical properties which were studied include compressive strength, splitting tensile strength, modulus of elasticity and saturated density. The test results indicated that a mix proportion of 1:2 lime:RHA is the most reactive mix proportion in terms of strength development and the addition of 1.5percent sodium aluminate in the mix yields the best results. Among the four types of lime investigated, the lime type C. which can be produced locally and through appropriate technology, was found to be most reactive when mixed together with RHA. The results further indicated that this cementitious material satisfies the minimum requirements of strengths of Portland cements specified by the ASTM Standards. |
| Year | 1984 |
| Type | Thesis |
| School | School of Engineering and Technology |
| Department | Department of Civil and Infrastucture Engineering (DCIE) |
| Academic Program/FoS | Structural Engineering (STE) /Former Name = Structural Engineering and Construction (ST) |
| Chairperson(s) | Pichai Nimityongskul |
| Examination Committee(s) | Pama, Ricardo P. ;Loo, Yew-Chaye |
| Scholarship Donor(s) | Government of Switzerland |
| Degree | Thesis (M.Eng.) - Asian Institute of Technology, 1984 |