title: Effects of using silica fume and polycarboxylate-type superplasticizer on physical properties of cementitious grout mixtures for semiflexible pavement surfacing.
abstract: Semi-flexible pavement surfacing is a composite pavement that utilizes the porous pavement structure of the flexible bituminous pavement, which is subsequently grouted with appropriate cementitious materials. This study aims to investigate the compressive strength, flexural strength, and workability performance of cementitious grout. The grout mixtures are designed to achieve high strength and maintain flow properties in order to allow the cement slurries to infiltrate easily through unfilled compacted skeletons. A paired-sample t-test was carried out to find out whether water/cement ratio, SP percentages, and use of silica fume influence the cementitious grout performance. The findings showed that the replacement of 5% silica fume with an adequate amount of superplasticizer and water/cement ratio was beneficial in improving the properties of the cementitious grout.
authors: Centre for Transportation Research, Faculty of Engineering, University of Malaya, 50603 Kuala Lumpur, Malaysia.
authors: Suhana
authors: 0000-0002-9568-1536
authors: S
authors: Koting
authors: Centre for Transportation Research, Faculty of Engineering, University of Malaya, 50603 Kuala Lumpur, Malaysia.
authors: Mohamed Rehan
authors: MR
authors: Karim
authors: Centre for Transportation Research, Faculty of Engineering, University of Malaya, 50603 Kuala Lumpur, Malaysia.
authors: Hilmi
authors: H
authors: Mahmud
authors: Centre for Transportation Research, Faculty of Engineering, University of Malaya, 50603 Kuala Lumpur, Malaysia.
authors: Nuha S
authors: NS
authors: Mashaan
authors: Centre for Transportation Research, Faculty of Engineering, University of Malaya, 50603 Kuala Lumpur, Malaysia.
authors: Mohd Rasdan
authors: 0000-0001-8753-2277
authors: MR
authors: Ibrahim
authors: Centre for Transportation Research, Faculty of Engineering, University of Malaya, 50603 Kuala Lumpur, Malaysia ; Universiti Tenaga Nasional, Putrajaya Campus, Jalan Ikram-Uniten, 43000 Kajang, Selangor, Malaysia.
authors: Herdayati
authors: H
authors: Katman
authors: Centre for Transportation Research, Faculty of Engineering, University of Malaya, 50603 Kuala Lumpur, Malaysia.
authors: Nadiah Md
authors: NM
authors: Husain
mesh_terms: D019245:Compressive Strength; D003252:Construction Materials / Q000592:standards; D010968:Plasticizers / Q000737:chemistry*; D018583:Pliability; D011076:Polycarboxylate Cement / Q000737:chemistry*; D012822:Silicon Dioxide / Q000737:chemistry*
chemical_list: D010968:Plasticizers; D011076:Polycarboxylate Cement; D012822:Silicon Dioxide