Production of RHA and its applications in mortar and concrete | |
| Author | We, Alex B. |
| Call Number | AIT Thesis no.ST-81-20 |
| Subject(s) | Rice hulls Mortar|--Additives Concrete--Additives |
| 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 was conducted to investigate a method of producing rice hull ash using simple and inexpensive process practicable to developing countries and to investigate the feasibility of using rice hull ash produced in concrete. Two methods of burning were considered, i.e. open-air burning and burning in ferrocement incinerator. The ash produced were tested both in mortar and concrete mixes. The mechanical properties include compression strength, splitting tensile strength, modulus of elasticity and surface hardness. In addition, its resistance against acidic attack was also considered. In both mortar and concrete mixes, results showed the cementing properties of RHA. Although a slight increase in water requirement is necessary, RHA can be used as a substitute, up to 35% by weight, for cement in mortar mixes. Strength of RHA-Portland cement concrete indicated that RHA can be very useful particularly in lean concrete mixes. And with its better resistance to acidic attack than normal concrete, it can be used as a material for construction of sewer and other chemically exposed applications. |
| Year | 1981 |
| 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) | Loo, Yew-Chaye ; Worsak Kanok-Nukulcha |
| Scholarship Donor(s) | The Royal Netherlands Government |
| Degree | Thesis (M.Eng.) - Asian Institute of Technology, 1981 |