Production of reactive rice husk ash and its application in pressed soil-cement block | |
| Author | Lakho, Shafi Muhammad |
| Call Number | AIT Thesis no. ST-80-14 |
| Subject(s) | Rice hulls Pozzuolanas |
| 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 | The purpose of this work is to seek the parameters, essential for the production of reactive RHA. Various ashes were prepared, by changing, burning time, burning temperature, supply of air during burning, cooling rate and grinding time, The ashes were blended with lime, mostly in proportion of 30% RHA and 70% lime. Effect of the parameter on the reactivity of RHA was evaluated by the degree of its contribution in raising the strength of mortars made with lime-RHA as cementing material. Based on the observations of these ashes under a microscope, a simple method of identifying the reactive RHA was discussed. An effective way of mass producing the reactive RHA was examined and application of reactive RHA together with lime for making the pressed soil cement blocks was sought for the first time. Following are the main findings: 1) Reactivity of RHA is also strongly dependent on the condition of supply of air during burning and cooling rate, in addition to burning temperature, burning time and grinding. 2) Grains of reactive RHA exhibit typical features when observed through microscope. 3) Reactive RHA can be mass produced very cheaply, and it can be advantageously used together with lime in place of Portland cement for making soil-cement blocks, |
| Year | 1980 |
| 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) | Yamamoto, Yasuhiko |
| Examination Committee(s) | Kawaguchi, Masahiro ;Pichai Nimityongskul |
| Scholarship Donor(s) | Carl Duisherg-Gesellschaft e.v., Germany |
| Degree | Thesis (M.Eng.) - Asian Institute of Technology, 1980 |