Mariyana Aida Ab Kadir

Institution Noise and Vibration, Faculty of Civil Engineering, Universiti Teknologi Malaysia · Structure and Materials

Palm oil fuel ash (POFA) is a waste materials dumped into an open field of a palm oil industry and thus, caused environmental contamination and health threat problems. The problems can be lessened by making use of POFA as cement replacement materials. A lot of researchers have conducted a research to study the use of POFA as cement replacement in t...

Palm oil fuel ash (POFA) has been widely utilized to replace cement in self – compacting concrete (SCC) to reduce the cost of its production, environmental pollution and health hazard caused in the cement production. However, the effect of high temperatures on SCC incorporating POFA has not been well established. The purpose of this research is to...

The use of natural fibers in cementitious composites has helped in eco-sustainability and green constructions. The susceptibility of bio-fibrous concrete (BFC) to fire is inevitable as its usage increases globally. Critical understanding of the residual properties of BFC is vital to its safety design criteria and acceptability of its use. Researche...

Mechanical properties of FRP such as strength and stiffness as well as the bonding interface between FRP and concrete will be badly deteriorated when exposed to high temperature. Furthermore, the effect of thickness of insulation with different type of concrete strength has not yet been studied elsewhere in numerical studies. Therefore, this study...

Concrete materials in structures are prone to fire and deteriorate under elevated temperatures, and their retained properties are critical to the soundness and serviceability demands of the structure. The effort to improve concrete toughness and ductility necessitates fibres in concrete. Adding biofibers to concrete has been considered promising du...

The application of biofibres in concrete is a promising option. However, balancing the quest for “cradle to grave” construction materials with concern about their fire endurance is essential. The effectiveness of Kenaf Fibre Reinforced Concrete (KFRC) in high-temperature environments is examined in this chapter. Residual characteristics like water...

Concrete gravity dams are critical infrastructure assets, and their failure in seismically active regions poses significant risks. The primary problem addressed in this research is the need for a reliable assessment of the seismic fragility of these dams to ensure safety in such areas. The research aims to develop a comprehensive methodology for se...

It is hypothesized that the inclusion of metakaolin (MK) improved the thermal stability of the concrete by refining its microstructure and reducing its thermal conductivity. Conversely, crumb rubber (CR) is anticipated to impart increased flexibility and energy absorption capacity, potentially enhancing the concrete's resilience under thermal stres...

This study discusses the seismic performance evaluation of an irregular auditorium building. The building is an educational facility which has roof span up to 46 meters, column height up to 10 meters, beam span up to 15 meters, cantilever up to 6.50 meters, 2 inclined columns with the angle up to 54.72°, and 1 transfer column with 1 transfer beam....

Estimating the potential damage or cracking in a concrete gravity dam during an earthquake is crucial for assessing its seismic vulnerability. However, the current body of literature lacks comprehensive coverage of damage indexes specifically designed for concrete gravity dams, taking into account both epistemic and aleatory uncertainties. This stu...

The assessment of seismic fragility of highway embankments is a key component of seismic risk modeling for traffic infrastructure. This study examines the seismic fragility of an embankment using advanced finite element dynamic analysis, contrasting findings with prior research to validate results. Based on established methodologies, an incremental...

Current research efforts focus on ensuring the safety of extant dams against seismic loads and designing earthquake-resistant new dams. Dependable analytical procedures are essential for a safe design that can withstand the forces induced by earthquakes. In this research, the Pine Flat Dam in California, United States, was subjected to modal, stati...

Purpose This review paper seeks to enhance knowledge of how pre-loading affects reinforced concrete (RC) beams under fire. It investigates key factors like deflection and load capacity to understand pre-loading's role in replicating RC beams' actual responses to fire, aiming to improve fire testing protocols and structural fire engineering design....

This research employs a sophisticated finite element model to conduct a comprehensive reliability analysis, focusing specifically on the earthquake behaviour of the Pine Flat Dam in Fresno County, California. The developed finite element model incorporates the intricate interaction among the dam, water, and foundation rock, accounting for essential...

Concrete under thermal loads is characterised by cracking and pore pressure build-up resulting in spalling and deterioration. Its retained strength is crucial to structural soundness and serviceability. Past findings indicate that some fibres could mitigate crack propagation and pore pressure in heated concrete. However, kenaf fibre-reinforced conc...

Climate change impacts wildfire events as well as water availability. Exposure of water resources to wildfire can reduce water quality supplied to humans and resulting health problems. On the other hand, water resources such as rivers and ponds are essential in wildfire firefighting. This paper intended to assess spatially the exposure of water res...

Investigating fluctuation in thermal loads is essential to understand the imposed deformations and stresses within structural elements. These deformations and stresses must be within the allowable limits to avoid structural failure or serviceability defects. The shrinkage and creep of the concrete impose additional stresses on all concrete elements...

Investigating fluctuation in thermal loads is essential to understand the imposed deformations and stresses within structural elements. These deformations and stresses must be within the allowable limits to avoid structural failure or serviceability defects. The shrinkage and creep of the concrete impose additional stresses on all concrete elements...

This paper analyses the field test results for three concrete slabs poured in UAE to define the thermal response within the test period including the hourly environment temperature fluctuations and correlated lateral thermal deformations. Time-dependent properties (TDP) and non-time dependent properties (NTDP) ETABS finite element models are genera...

The theory of critical distances (TCD) represents a new area of research on fatigue damage in concrete that is primarily used to characterise fatigue and fracture behaviours. Although TCD is accurate, it appears inconsistent when considering the water-cement ratio of concrete. Such inconsistency is related to the tendency to overlook the effects of...

Concrete-filled hollow steel (CFHS) has become more popular due to its advantages and benefits compared to reinforced concrete. This paper presents the experimental investigation on the performance of rubberized pozzolanic concrete-filled hollowsteel column (RuPCFHS) under monotonic and cyclic lateral load in comparison to bare hollow steel column...

The theory of critical distances (TCD) represents a new area of research on fatigue damage in concrete that is primarily used to characterise fatigue and fracture behaviours. Although TCD is accurate, it appears inconsistent when considering the water–cement ratio of concrete. Such inconsistency is related to the tendency to overlook the effects of...

Concrete buildings are subjected to fluctuation in seasonal temperature loads between summer and winter in the Arabic area. The long-term effects of such temperatures on concrete buildings, accompanied by the variation in ambient temperatures, induce thermal displacements and forces in concrete structures. The thermal forces and displacements influ...

The Arabic area is known for its significant changes in climate temperatures within different seasons. Riyadh, Cairo, Abu Dhabi, Ras Al-Khaimah, Kuwait, and Baghdad are subjected to the maximum variance in daily temperatures and presents the mean values of daily temperatures considering the data collected by the Hong Kong observatory in China for t...

Malaysia located outside the 'Pacific Ring of Fire' and considered to be safe from any seismic activities. However, tremors were felt in some areas due to far-field and near-field earthquake effects. Hospitals are important for any post-disaster event and maintain their resilience in any situation. The objective is to evaluate the level of prepared...

Reduction in self-weight and achievement of full fire resistance requirements are some of the important considerations in the design of high-rise structures. Lightweight concrete filled steel tube (CFST) column provides an alternative method to serve these purposes. Recent studies on lightweight CFST columns at ambient temperature have revealed tha...

ABSTRACT - Malaysia is safe from seismic activities because located outside the ‘Pacific Ring of Fire’. However, tremors were felt in some areas due to far-field and near-field earthquake effects. Hospitals are important for the post-disaster event and maintain their resilience in any situation. The objective is to evaluate the level of preparednes...

Hospital Preparedness Towards Earthquake in Malaysia:Are we ready? Preparedness towards earthquake are moderate in Malaysia. Earthquake disaster preparation are minimally practice in some hospitals. Building safety is the first priority chosen among healthcare providers and good leadership skill are required in disaster preparedness.

ne of the efforts to reduce the dependency of concrete production on natural resources along with carbon reduction is by utilizing recoverable materials as concrete constituents such as crumb rubber from scrap tires and fly ash from industrial waste. This study aims to investigate the mechanical properties of rubberized fly ash concrete which utili...

Palm oil fuel ash (POFA) has been extensively used to substitute cement in the production of self-compacting concrete (SCC) to lessen its production cost, health hazard, energy consumption problems and environmental pollution caused during the production of cement. Nevertheless, the impact of elevated temperatures on self-compacting concrete produc...

Purpose – Concrete-filled steel hollow (CFHS) column is an innovation to improve the performance of concrete or steel column. It is believed to have high compressive strength, good plasticity and is excellent for seismic and fire performance as compared to hollow steel column without a filler. Design/methodology/approach – Experimental and numerica...

Purpose Concrete-filled steel hollow (CFHS) column is an innovation to improve the performance of concrete or steel column. It is believed to have high compressive strength, good plasticity and is excellent for seismic and fire performance as compared to hollow steel column without a filler. Design/methodology/approach Experimental and numerical i...

Malaysia is located in a low seismicity area, thus the buildings in Malaysia were not designed as seismic resistant structures. However, on 5 June 2015, Malaysian was been shocked by the 5.9M Ranau Earthquake which killed 18 climbers of 5 nationalities and was recorded as the largest earthquake in Malaysia since 1976. The earthquake affected some b...

The utilisation of waste materials in concrete is one of the sustainable construction approaches introduced in the industry that can indirectly reduce the environmental issues arisen from the disposal problem of the wastes. The aim of this study is to investigate the hardened properties of rubberised pozzolanic concrete (RuPC) with different propor...

Purpose The purpose of this paper is to examine the mechanical properties, material composition of spent garnet as a sand replacement in high-strength concrete at room and elevated temperatures. Bonding of the concrete containing spent garnet and reinforcing rebar is investigated. Moreover, the optimum thickness of concrete cover subjected to eleva...

Concrete cover plays an important role in protecting the reinforcement from harmful environments and high temperatures. In this study, the effects of the concrete cover containing garnet and rebar prepared with cover thicknesses of 20 and 30 mm and subjected to temperatures of 20°C, 200°C, 400°C, 600°C and 800°C for 1-hour duration were determined...

The fundamental aim of this study is to determine the effect of high temperature on the behavior of concrete consists NaOH treated rubber and steel fibers (TRSF-Con). During the experiment, four different concrete mixes were prepared; the first one is the control mix (CM) which was made with natural coarse and fine aggregates, cement, and water, wh...

The use of concrete waste aggregate in civil construction

The utilisation of waste materials in concrete is one of the sustainable construction approaches introduced in the industry that can indirectly reduce the environmental issues arisen from the disposal problem of the wastes. The aim of this study is to investigate the hardened properties of rubberised pozzolanic concrete (RuPC) with different propor...

Shear wave velocity (V s ) is considered a key soil parameter in the field of earthquake engineering. The time-averaged shear wave velocity in the upper 30 m (V s30 ) layer of soil is used to classify seismic site class. In-situ V s test is sometimes unsuitable to the project’s need due to financial reasons, noisy environment on site or simply the...

This paper discusses the review of researches concerning the possibility of utilising crumb rubber in high strength self-compacting concrete (HSSCC). It has been used as replacement for coarse and fine aggregates at various percentage replacement levels. It will also discuss the possibility of utilizing its fibre as an alternative in high strength...

Concrete-filled hollow steel column (CFHS) column is a composite column that comprised of concrete core filled into hollow steel section. The composite action between the hollow steel sections and concrete core give CFHS better performance over conventional reinforced concrete and steel column. Numbers of studies had been done on the performances o...

Temperature analysis is the first step in determining the behavior of a member under fire condition, obtaining an accurate thermal response on a member exposed to fire will result in getting the actual mechanical response on a member. Fire resistance test was carried out on three circular steel hollow section columns axially loaded with 15, 20 and...

The use of concrete filled steel tube (CFST) columns offers an alternative for providing the required fire resistance and load bearing capacity, making its use in medium and high rise structures are highly popular. This paper aims to review the previous studies on CFST column under fire. The standards or codes of practice used in fire resistance de...

Lightweight construction is aimed to achieve a sustainable feature by reducing transportation frequency and construction materials usage during construction phase. Lightweight precast concrete may serve an alternative for the lightweight construction. There are rarely application can be found for structural members as lightweight panels always to b...

Standard fire test was carried out on 3 hollow steel tube and 6 foamed concrete filled steel tube columns. Temperature distribution on the columns was investigated. 1500 kg/m³ and 1800 kg/m³ foamed concrete density at 15%, 20% and 25% load level are the parameters considered. The columns investigated were 2400 mm long, 139.7 mm outer diameter and 6...

The use of industrial waste as construction material to build environmentally sustainable structure has several practical and economic advantages. Palm oil clinker is a waste material obtained by burning off solid wastes during the process of palm oil extraction. The research performed over the last two decades concerning the use of palm oil clinke...

Concrete, if properly design, can be one of the most durable material and widely used in construction due to its availability and good compressive strength. A good quality concrete can be produced not only through good design of concrete mix proportions but also good and proper curing process that ensure a complete hydration process of the cement....

The assessment of fire damaged structure is an area which considered new and have little practical experience in Malaysia. In this study the objective are to determine the concrete strength and the ultimate strength of steel truss and weight loss of the steel after exposure to fire. Non-destructive and destructive test has been tested in this study...

Concrete contains crumb rubber and steel fiber from waste tires has recently gained interest among researchers as an alternative material to be used in the construction field. Mechanical properties of the concrete containing crumb rubber replacement and steel fiber at high temperature was investigated experimentally. The waste crumb rubber was chem...

Lightweight concrete (LWC) has been identified as an innovative technique for construction purposes. Lightweight concrete can be categorized into three different types which are no-fine aggregate concrete, lightweight aggregate concrete and aerated concrete. This paper studied the characteristic of the lightweight concrete in term of mechanical pro...

In general the Normal Concrete (NC) are by quasi-brittle failure, where, the nearly complete loss of loading capacity, once failure is initiated especially under dynamic loadings. The significance of this study is to improve the damping properties of concrete structure by utilization of the recycled materials from waste tires to be used in concrete...

Concrete contains crumb rubber and steel fiber from waste tires has recently gained interest among researchers as an alternative material to be used in the construction field. Mechanical properties of the concrete containing crumb rubber replacement and steel fiber at high temperature was investigated experimentally. The waste crumb rubber was chem...

The Faculty of Civil Engineering, Universiti Teknologi Malaysia (UTM) has been organizing the bi-annual bridge model testing competition since 1999. The first two competitions were open within the University only, while the 3rd, 5th and 6th competition (2001, 2005 & 2007) was open at National level. The 4th event held in 2003 was open at the Asia P...

Faculty of Civil Engineering, Universiti Teknologi Malaysia (UTM) has been organizing the bi-annual bridge model testing competition since 1999. The first two competitions were open within the University only, while the 3rd, 5th and 6th competition (2001, 2005 & 2007) was open at National level. The 4th event held in 2003 was open at the Asia Pacif...

replacement of sand by using spent garnet in produce mortar mix.

The replacement of river sand with substitution of spent garnet by 5% to 15% in a concrete mix to produce normal strength concrete.

Special mix design (10% of crumb rubber for fine aggregates replacement + 1% steel fibre) in a concrete mix. Enhance dynamic performance of structures in earthquake prone area. 40% improvement on conjecture damping ratio

The rise of extensive research and development on the application of steel fibre inside concrete is a tremendous topic in the last few decades. The obvious benefits of adding steel fibre inside concrete can be seen from the improvement of the mechanical properties of steel fibre reinforced concrete (SFRC). The improvement of the mechanical properti...

Natural rubber with asphaltic materials is a great invention towards producing an admirable quality of asphalt paving roads. With its inherent chemical composition as elastomer kind of properties, this polymer modification can change the performance of current conventional asphalt paving roads which is recently faced limitation against temperature...

This paper presents experimental results on some physical and mechanical properties of concrete containing sawdust. Concrete specimens having various cement to sawdust ratios of 1:1, 1:2 and 1:3 by volume were made and tested for workability, density, water absorption, strength and modulus of elasticity at different curing periods of 7, 14 and 28 d...

The utilization of waste fibers from textile industries for reinforcement of concrete is a very attractive approach because of their technical, economic, and ecological benefits. This article highlights some laboratory test results of the influence of waste carpet fibers on the deformation characteristics of concrete. Concrete mixtures containing 0...

This paper presents experimental results on some physical and mechanical properties of concretecontaining sawdust. Concrete specimens having various cement to sawdust ratios of 1:1, 1:2 and 1:3 by volume were made and tested for workability, density, water absorption, strength and modulus of elasticity at different curing periods of 7, 14 and 28 da...

SEER-SUFRCRETE : SUSTAINABLE RUBBERIZED STEEL FIBRE CONCRETE FOR EARTHQUAKE RESISTANCE STRUCTURES