Performance Based Analysis and Design of Concrete Mix Proportions
Simulation models for predicting materials, mix proportion, time and environment dependent properties of concrete are studied. At present, the studied properties are workability, workability loss, strength, thermal cracking, autogenous and drying shrinkages, cracking resistance, carbonation, chloride induced corrosion, and sulfate resistance. Computer software is being improved for performance analysis and design purposes. Results of the research works are utilized in the establishment of “Design Considering Durability and Service Life” for concrete structures in Thailand.
Proper Use of Binders and Fillers as Cement Replacing Materials in Concrete
Studies on the properties of concrete with various kinds of powder materials are conducted. The materials are: fly ash and CaCO3 powder, etc. Optimizing the use of these materials and introduction of multibinder systems to the concrete industry are the aims of this project. Effect of fly ash with high free lime and SO3 content on properties of concrete is also studied for modifying the current fly ash specification. Durability of systems with multi binders is studied for optimizing the use of the multi binder system.
Use of Bottom Ash in Concrete
The use of bottom ash as a partial replacement of fine aggregate is studied. Some merits were observed when the replacement proportions and other control properties were appropriate. The targets of this study are to introduce the use of bottom ash to the concrete industry as well as to establish a standard for utilizing bottom ash as a partial replacing material for fine aggregate.
Maintenance of Concrete Structures
Research works and their applications on inspection, repair, maintenance, life cycle evaluation, and maintenance management of concrete structures are carried out. The works are parts of the program to develop appropriate maintenance codes and standards for concrete structures in Thailand.
|1998-1999||Vice chairman, subcommittee on concrete and materials of the EIT
Committee member, Civil Engineering Chapter of the EIT
|2000 to 2001||Vice Chairman of the Committee for drafting Specification on Concrete Traffic Barrier, Office of Thai Industrial Standard, Ministry of Industry
Chairman, subcommittee on concrete and materials of the EIT
Vice chairman, Civil Engineering Chapter of the EIT
Committee member, Publication Committee of the EIT
Committee member, Committee on Technology Transfer of the EIT
|1999 to 2002||Committee for drafting Specification on Fly Ash for Use in Concrete, Office of Thai Industrial Standard, Ministry of Industry|
|2002 to 2004||Committee for modifying Specification on Portland Cement, Office of Thai Industrial Standard, Ministry of Industry|
|2004 to 2007||Advisor, Civil Engineering Chapter, Engineering Institute of Thailand
Advisor, Concrete and Materials Committee, Engineering Institute of Thailand
|2004 to present||Secretary General of Thai Concrete Association
Advisor, Committee on Materials, Thai Concrete Association
Advisor, Committee on Maintenance, Thai Concrete Association
|2010 to 2012||President, Thailand Concrete Association|
|2013 to Present||Advisor, Thailand Concrete Association|
Also serving as advisory, steering and technical committee member of many international workshops, symposiums and conferences.