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RISPore Structure Changes of Blended Cement Pastes Containing Fly Ash, Rice Husk Ash, and Palm Oil Fuel Ash Caused by Carbonation
Publisher: American Society of Civil Engineers
Abstract: In this paper, the effects of carbonation on pore structure of blended pozzolan cement pastes were investigated. Ordinary Portland cement (OPC) was partially replaced with ground palm oil fuel ash (POA), ground rice husk ...
Strength and Carbonation Model of Rice Husk Ash Cement Mortar with Different Fineness
Publisher: American Society of Civil Engineers
Abstract: This paper presents a study of the strength and carbonation resistance of mortar made with portland rice husk ash cement by some accelerated short-term techniques in 5% carbon dioxide. Three finenesses of rice husk ashes, ...
Setting Time, Strength, and Bond of High-Calcium Fly Ash Geopolymer Concrete
Publisher: American Society of Civil Engineers
Abstract: In this paper, setting time, strength and bond of high-calcium fly ash geopolymer concrete were investigated. The high-calcium fly ash was from Mae Moh power plant in northern Thailand. Both sodium silicate solution and ...
Use of Palm Oil Fuel Ash to Improve Chloride and Corrosion Resistance of High-Strength and High-Workability Concrete
Publisher: American Society of Civil Engineers
Abstract: This paper presents the use of palm oil fuel ash as a pozzolanic material in producing high-strength and high-workability concrete. Portland cement Type I (CT) was partially replaced with ground palm oil fuel ash (PA). PA ...
Sulfate Resistance of Clay-Portland Cement and Clay High-Calcium Fly Ash Geopolymer
Publisher: American Society of Civil Engineers
Abstract: This paper examines the short-term resistance ability of two different cementitious systems prepared using silty clay as a major component against 5 wt% sodium sulfate and 5 wt% magnesium sulfate solutions. The two ...
Fatigue Assessment of Cement-Treated Base for Roads: An Examination of Beam-Fatigue Tests
Publisher: American Society of Civil Engineers
Role of Filler Effect and Pozzolanic Reaction of Biomass Ashes on Hydrated Phase and Pore Size Distribution of Blended Cement Paste
Publisher: American Society of Civil Engineers
Abstract: The role of filler effect and pozzolanic reaction of biomass ash on hydrated phase and pore size distribution of blended cement paste was studied. Rice husk ash (RHA), palm oil fuel ash (POFA), and river sand (RS) were ...
High-Calcium Bottom Ash Geopolymer: Sorptivity, Pore Size, and Resistance to Sodium Sulfate Attack
Publisher: American Society of Civil Engineers
Abstract: The resistance to sulfate attack, compressive strength, sorptivity, and pore size of high-calcium bottom ash geopolymer mortars were studied. Ground lignite bottom ashes (BAs) with median particle sizes of 16, 25, and 32 μm ...
Influence of Activation Methods on Strength and Chloride Resistance of Concrete Using Calcium Carbide Residue–Fly Ash Mixture as a New Binder
Publisher: American Society of Civil Engineers
Abstract: This research aimed to investigate the compressive strength and chloride resistance of concrete made with 30% of calcium carbide residue (CCR) and 70% fly ash (FA) as a binder without portland cement. There were three ...
Recycled Concrete Aggregates in Roadways: Laboratory Examination of Self-Cementing Characteristics
Publisher: American Society of Civil Engineers
Abstract: This paper examines the self-cementing phenomenon of the road construction material known as recycled concrete aggregate (RCA). Two RCA types were selected as study materials: (1) high-grade RCA (HRCA), a quality RCA ...