Characteristics of polymeric fiber reinforced cementitious composite (PFRCC) under uniaxial compression Shwan Hussain Said, Khamees Nayyef Abdulhaleem, Ahmed Abdalhafedh Mustafa Al-Shaar Journal of Engineering and Technological Sciences, 2021 This study aimed to evaluate the compressive characteristics and toughness of polymeric fiber reinforced cementitious composites (PFRCC). In the experimental program, polyvinyl alcohol (PVA) fibers were used to prepare two groups of PFRCC cylinders with different fiber contents. The main factor considered in this study was the reinforcing index. Several parameters were investigated, i.e. compressive strength, elastic modulus, strain at peak stress, Poisson’s ratio and toughness of PFRCC. The results revealed that there was a reduction in both compressive strength and elastic modulus as the reinforcing index increased, while a significant increase in the strain at peak stress was observed. Moreover, a comparison was made between different methods of toughness estimation and it was found that 7.9 was the best reinforcing index for PVA fibers based on the energy absorption performance and ductility of PFRCC. Furthermore, an empirical model is proposed in this paper to predict the PFRCC-PVA compressive stress-strain curve. The proposed model features new formulas to calculate a number of important coefficients to plot the curve based on the reinforcing index value. Besides that, the model had good convergence compared to the experimental results, with perfect values for both variance and correlation coefficient.
A review study on the characterization of geopolymer concrete Shwan H. Said Key Engineering Materials, 2019 Ordinary Portland cement (OPC) is the essential binding material to produce the OPC concrete. Production of OPC is recently attaining a rate of 2.6 billion ton per year worldwide and growing 5% annually. OPC contributes at rate of 5 – 8% of human-worldwide CO2 emissions which are the greenhouse gases pollute the atmosphere. Geopolymer concrete (GPC) is a creative, sustainable, economical and eco-friendly material for construction industry, which is a suitable alternative to the OPC concrete, able to extensively curb the CO2 emissions. To prepare this kind of concrete, a combination of pozzolanic material such as fly ash (FA), and/or ground granulated blast furnace slag (GGBS) rich with silica and alumina can react with alkaline activator solution producing aluminosilicate gel, acting as a superb binding material for fine and coarse aggregates under special conditions of curing. This study highlights the recent explorations on geopolymer mortars and concrete. Effect of chemicals such as sulphuric acid, effect of fly ash partial replacement with different binding materials, effect of concentration of alkaline activator solutions and the effect of temperature and time of curing variation have been discussed on durability and mechanical properties of geopolymer concrete. Results have shown superb resistance of geopolymer concrete to the detrimental effects of sulphuric acid on weight and compressive strength. Furthermore, fly ash partial replacement with silica fume, OPC or GGBS, or nanosilica inclusion in GPC has a positive effect on the GPC properties. Finally, using high concentration of sodium hydroxide has a detrimental effect on GPC properties.
Strength and deformation characteristics of engineered cementitious composite slabs with different polymer fibres Shwan H Said, Hashim A Razak, Ismail Othman Journal of Reinforced Plastics and Composites, 2015 This paper presents a study on the compressive and flexural strength of engineered cementitious composite (ECC) cubes and slabs, reinforced with various polymer fibres. The type of fibre, fibre content and aspect ratio were the parameters considered in this study. For all types of fibre, the compressive strength of the ECC decreased as the reinforcing index increased. For the ECC polypropylene fibre (PP) slabs, the first crack strength significantly decreased with an increase in the fibre content. For the ECC polyethylene fibre (PE) slabs, the first crack strength decreased as the reinforcing index increased. For the ECC PE slabs, the usage of PE 1600D fibres showed a substantial increase in flexural strength due to their higher tensile strength and E modulus. The ECC PP slabs behaved like plane concrete due to the zero value of flexural strength, which was attributed to the weak interfacial bonding with the cement matrix, low tensile strength and E modulus of the PP fibres. The highest ductility was observed for the ECC-PE slabs with the highest recorded deflection values; these values achieved many extended multiple cracks and an extensive area under the load–deflection curve indicating high energy absorption capacity.
RETRACTED: Numerical Study on the Behavior of High Strength Concrete Encased Steel (CES) Composite Stub Columns under Compressive Load SH Said, RI Khalel, KF Hasan, B Alsubari 2024
Finite Element Analysis of Self-Compacted Concrete Filled Steel Tube Columns Exposed to High Temperatures QFH Waleed Khalid Mohammed, Khamees N. Abdulhaleem, Shwan H. Said International Journal of Analytical, Experimental and Finite Element … , 2023 2023 Citations: 1
Impact of Rapid Corrosion of Steel Bars on the Flexural Behavior of Reinforced Concrete Beams with Different Mix Proportions SHSQFH Khamees N. Abdulhaleem , Waleed Khalid Mohammed International Journal of Advances in Engineering and Emerging Technology … , 2023 2023 Citations: 1
Compressive characteristics of resin translucent cement mortar (RTCM) used in the external walls to rationalize the energy spent inside the building NS Abdulmajeed, SH Said Case Studies in Construction Materials 17, e01687 , 2022 2022 Citations: 8
Characteristics of Polymeric Fiber Reinforced Cementitious Composite (PFRCC) under Uniaxial Compression SH Said, KN Abdulhaleem, A Abdalhafedh, M Al-Shaar Journal of Engineering and Technological Sciences 53 (4) , 2021 2021 Citations: 1
State-of-the-art developments in light transmitting concrete SH Said Materials Today: Proceedings 33, 1967-1973 , 2020 2020 Citations: 46
A Review Study on the Characterization of Geopolymer Concrete SH Said Key Engineering Materials 821, 472-478 , 2019 2019
SUBSTITUTION OF THE TRANSVERSE REINFORCEMENT WITH ENGINEERED CEMENTITIOUS COMPOSITE IN RC EXTERIOR BEAM-COLUMN JOINTS SUBJECTED TO CYCLIC LOADING SH Said PROCEEDINGS OF THE 6TH INTERNATIONAL CONFERENCE ON INTEGRITY-RELIABILITY … , 2018 2018
Effect of Replacing the Transverse Reinforcement with Engineered Cementitious Composite in RC Exterior Beam-Column Joints Subjected to Cyclic Loading H Said, S 11TH INTERNATIONAL CONFERENCE ON COMPOSITE SCIENCE AND TECHNOLOGY, 15-20 , 2017 2017 Citations: 2
Structural behavior of RC engineered cementitious composite (ECC) exterior beam–column joints under reversed cyclic loading SH Said, HA Razak Construction and building materials 107, 226-234 , 2016 2016 Citations: 225
The effect of synthetic polyethylene fiber on the strain hardening behavior of engineered cementitious composite (ECC) SH Said, HA Razak Materials & Design 86, 447-457 , 2015 2015 Citations: 194
Strength and deformation characteristics of engineered cementitious composite slabs with different polymer fibres SH Said, HA Razak, I Othman Journal of Reinforced Plastics and Composites 34 (23), 1950-1962 , 2015 2015 Citations: 26
Flexural behavior of engineered cementitious composite (ECC) slabs with polyvinyl alcohol fibers SH Said, HA Razak, I Othman Construction and building materials 75, 176-188 , 2015 2015 Citations: 187
Seismic performance of RC engineered cementitious composite (ECC) exterior beam-column joints under reversed cyclic loading. SH Said, H Abdul Razak ICCS 18th International Conference on Composite Structures, Book of abstract … , 2015 2015
MOST CITED SCHOLAR PUBLICATIONS
Structural behavior of RC engineered cementitious composite (ECC) exterior beam–column joints under reversed cyclic loading SH Said, HA Razak Construction and building materials 107, 226-234 , 2016 2016 Citations: 225
The effect of synthetic polyethylene fiber on the strain hardening behavior of engineered cementitious composite (ECC) SH Said, HA Razak Materials & Design 86, 447-457 , 2015 2015 Citations: 194
Flexural behavior of engineered cementitious composite (ECC) slabs with polyvinyl alcohol fibers SH Said, HA Razak, I Othman Construction and building materials 75, 176-188 , 2015 2015 Citations: 187
State-of-the-art developments in light transmitting concrete SH Said Materials Today: Proceedings 33, 1967-1973 , 2020 2020 Citations: 46
Strength and deformation characteristics of engineered cementitious composite slabs with different polymer fibres SH Said, HA Razak, I Othman Journal of Reinforced Plastics and Composites 34 (23), 1950-1962 , 2015 2015 Citations: 26
Compressive characteristics of resin translucent cement mortar (RTCM) used in the external walls to rationalize the energy spent inside the building NS Abdulmajeed, SH Said Case Studies in Construction Materials 17, e01687 , 2022 2022 Citations: 8
Effect of Replacing the Transverse Reinforcement with Engineered Cementitious Composite in RC Exterior Beam-Column Joints Subjected to Cyclic Loading H Said, S 11TH INTERNATIONAL CONFERENCE ON COMPOSITE SCIENCE AND TECHNOLOGY, 15-20 , 2017 2017 Citations: 2
Finite Element Analysis of Self-Compacted Concrete Filled Steel Tube Columns Exposed to High Temperatures QFH Waleed Khalid Mohammed, Khamees N. Abdulhaleem, Shwan H. Said International Journal of Analytical, Experimental and Finite Element … , 2023 2023 Citations: 1
Impact of Rapid Corrosion of Steel Bars on the Flexural Behavior of Reinforced Concrete Beams with Different Mix Proportions SHSQFH Khamees N. Abdulhaleem , Waleed Khalid Mohammed International Journal of Advances in Engineering and Emerging Technology … , 2023 2023 Citations: 1
Characteristics of Polymeric Fiber Reinforced Cementitious Composite (PFRCC) under Uniaxial Compression SH Said, KN Abdulhaleem, A Abdalhafedh, M Al-Shaar Journal of Engineering and Technological Sciences 53 (4) , 2021 2021 Citations: 1
RETRACTED: Numerical Study on the Behavior of High Strength Concrete Encased Steel (CES) Composite Stub Columns under Compressive Load SH Said, RI Khalel, KF Hasan, B Alsubari 2024
A Review Study on the Characterization of Geopolymer Concrete SH Said Key Engineering Materials 821, 472-478 , 2019 2019
SUBSTITUTION OF THE TRANSVERSE REINFORCEMENT WITH ENGINEERED CEMENTITIOUS COMPOSITE IN RC EXTERIOR BEAM-COLUMN JOINTS SUBJECTED TO CYCLIC LOADING SH Said PROCEEDINGS OF THE 6TH INTERNATIONAL CONFERENCE ON INTEGRITY-RELIABILITY … , 2018 2018
Seismic performance of RC engineered cementitious composite (ECC) exterior beam-column joints under reversed cyclic loading. SH Said, H Abdul Razak ICCS 18th International Conference on Composite Structures, Book of abstract … , 2015 2015
