Hamidah Mohd Saman's research while affiliated with Universiti Teknologi MARA and other places

Publications (81)

Article
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Base isolation is a technique installed to absorb any movement or vibration on the structures. The incorporation of nanocomposites into elastomer as the interesting materials especially for the active stiffness and vibration control of structural systems. A base isolator is made up of alternate layers of steel and rubber. The performance of magneti...
Chapter
The incorporation of waste products as an additive or replacement in concrete is tremendously growing in the world of construction. The use of Palm Oil Fuel Ash (POFA) as a partial replacement in cement paste can contribute to improving the conventional repair and rehabilitation work as it enhances some particular properties of the cement paste. Th...
Chapter
All these years, commonly used repairing and retrofitting materials are cement paste, grout, patching, and epoxy. However, due to the expensive and unreliable application, an alternative material is needed. This research emphases the use of waste material such as palm oil fuel ash (POFA) and alkaline activator (sodium hydroxide) in cement paste as...
Article
This review paper discussed on the behavior of Ultra High-Performance Concrete (UHPC) in the concrete industry. Since the emergence of unique design of concrete, the needs of UHPC can contribute to alternative solutions to the High-Performance Concrete (HPC) and also normal concrete. In this review, definition, materials and techniques of producing...
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The Engineering Accreditation Council Standard 2020 requires the stipulated 12 programme outcomes that address complex engineering problems (CEP) and complex engineering activities (CEA) to be incorporated in the engineering programmes. However, the implementation of outcome-based education with regards to CEP and CEA is still in the infancy stage....
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The major concern on the deterioration of reinforced concrete structure is due to the corrosion of steel reinforcement from the aggressive environment such as chloride penetration. Ultra-high performance concrete (UHPC) is an advanced concrete material having ultra-high strength with excellent durability properties. Inclusion of nano metaclay in UH...
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High strength concrete (HSC) is an amazing breakthrough in the history of construction material. Due to its high strength, durability, and economic value, it has been used in large-scale construction with a unique structure design not achievable by conventional concrete. However, HSC uses a high amount of cement powder which contributes to its over...
Article
Malaysia's palm oil industry plays a significant role in the country's economy. However, a large amount of palm oil fuel ash (POFA), a by-product of this industry, may negatively affect the environment and human health. Hence, this study hypothesized that POFA might be re-used in the form of replacement in concrete to lessen the risk to the environ...
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The major cause for corrosion of steel reinforcement embedded in concrete due to chloride penetration has been the great research effort. The use of nano metaclay in UHPC increase the strength and helps the formation of micro pores by acting as a filler thus improve the chloride penetration resistance characteristic. The aim of this study is to eva...
Article
Expanded polystyrene (EPS) concrete is a promising material as lightweight features, environment-friendly materials and potentially used in lightweight building construction. However, EPS concrete has substantially affected the transition zone of elastic behavior of the element. This paper aims to evaluate the modulus of elasticity (MOE) from the c...
Article
Sewage sludge is a by-product generated within the wastewater treatment process. Severe concern arised as the sludge are massively been dumped to the landfill and it may affect the environment. Many studies had been conducted in reusing the sewage sludge as construction material, where it is one of the optional ways to solve the issue. In this stud...
Article
Industrial by-products are significant to be used as raw materials and binder for fabrication of building materials to substitute dwindling natural resources and polluted binder. Brick specimens composed of coal ash as raw materials and stabilise with hydrated lime-activated ground granulated blastfurnace slag (GGBS) as binder system were fabricate...
Article
Purpose The purpose of this paper is to present the investigation of damage severity of reinforced concrete (RC) beam subjected to increasing fatigue loading using intensity of acoustic emission (AE) signal. Design/methodology/approach Together 17 RC beams with dimension of 150 × 150 × 750 mm were prepared. Third point loading fatigue test was per...
Chapter
This study describes the incorporation method of Geobacillus stearothermophilus (ATCC 12978) inside the cement-sand mortar. Different cell concentrations of Geobacillus stearothermophilus were incorporated and the improvement in the properties of cement-sand mortar has been observed. Based on the study conducted, the involvement of Geobacillus stea...
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Today, research on steel corrosion issues are still widely debated and revived scientific attention. In order to detect steel corrosion, an idea to explore the relationship of corrosion potential using half-cell potential related to the variations in strain change on embedded steel measured by FBG sensor were explored. In this study, the steel was...
Conference Paper
Affective domain in learning consists of feeling, emotion and attitude which has received less attention in engineering education research as compared to cognitive domain. Assessment on affective domain is commonly associated with communication and teamwork elements. The attainment for program outcomes (PO) under affective domain can be measured di...
Conference Paper
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Design thinking (DT) is a robust framework for creatively identifying and solving various human problems. It offers a systematic solution to train engineering student"s critical and creative thinking to solve complex engineering problems. The DT method can be integrated with the conceive-design-implement-operate (CDIO) framework to develop personal...
Conference Paper
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Utilisation of waste material as additives in concrete has growing and interest to the world of construction. Due to massive use of natural sources such as limestone, the availability of those raw sources is in extinction. This paper presents the experimental investigations conducted on concrete grade 30 incorporating agro-industrial waste, POFA as...
Article
Sewage sludge is a by-product generated within the wastewater treatment process. Severe concern arised as the sludge are massively been dumped to the landfill and it may affect the environment. Many studies had been conducted in reusing the sewage sludge as construction material, where it is one of the optional ways to solve the issue. In this stud...
Article
Sewage sludge is a by-product generated within the wastewater treatment process. Severe concern arised as the sludge are massively been dumped to the landfill and it may affect the environment. Many studies had been conducted in reusing the sewage sludge as construction material, where it is one of the optional ways to solve the issue. In this stud...
Article
Full-text available
Geopolymer is a based on inorganic alumino-silicate binder system. Geopolymeric materials are formed using materials that containing silica and aluminium such as fly ash and rice husk ash, which activated by alkaline solution. This paper presents the study on the effect of replacement of SSA in RHA based geopolymer, types of curing and different mo...
Article
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The paper aims to provide a holistic approach to address how construction firms make decisions covering all three domains (location, timing and mode) across country, market, firm and project factors within the Ownership, Locational and Internalisation plus Specialty (OLI+S) paradigm. Questionnaires were administered to 62 project managers based on...
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The inclusion of Effective Microorganism (EM) lengthen the setting time of microbed cement paste with respect to the control cement paste. However, the investigation on the influence of EM ingredients to the setting time was not performed yet in the earlier study. Therefore, the test of X-Ray Diffraction (XRD) was performed on the EM product used i...
Article
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Nowadays, the application of nano materials is getting attention to enhance the conventional concrete properties. The ultrafine particles of nano material also will help reducing the formation of micro pores by acting as a filler agent, produce a very dense concrete and will reduce the growth of micro pores in the UHPC structures. The introduction...
Article
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Coal ash is an industrial by-product and significant to be utilized as raw material for brick fabrication as substitution to the existing widely used depleting non-renewable natural resources i.e. clay and sand. Furthermore, widely used common binding materials i.e. lime and Portland cement are considered as the non-environmental friendly materials...
Article
Water treatment sludge (WTS) is a problematic waste produced from water treatment processes. WTS contains high in organic (e.g. nutrients) and inorganic (e.g. heavy metals) pollutants. There are many treatments of sludge. Current treatments of sludge are either by chemical, physical or biological treatments. However, the treatments require high ene...
Chapter
This study describes the incorporation method of Geobacillus stearothermophilus (ATCC 12978) inside the cement–sand mortar. Different cell concentrations of Geobacillus stearothermophilus were incorporated and the improvement in the properties of cement–sand mortar has been observed. Based on the study conducted, the involvement of Geobacillus stea...
Chapter
Textile fine grained mortar (TFGM) is a composite construction material which provides another alternative to strengthen and repair existing concrete structures. TFGM is a combination of fine grained mortar (FGM) made of waste material with textile fabrics. The strengthening approach significantly increases both the ultimate load carrying capacity...
Chapter
Neglecting to properly choose the right combination of entry mode and entry timing strategies can lead to poor performance in international business ventures. The paper focuses on the linking of entry timing (ET) and entry mode (EM) decisions and the factors influencing both decisions. By consolidating the findings for both entry decisions, an ETEM...
Chapter
Water treatment plant sludge (WTPS) is pathogen and heavy metals that can harm human health and the environment. As strict regulation had been implemented, WTPS is advised and must be treated before the waste is transported to landfill. Therefore, this research is conducted to solidify WTPS with an alternative waste material. The waste material so...
Article
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Market expansion into international markets has been increasingly important for Malaysian construction firms. Thus, firms must adopt effective strategies to face various challenges in unfamiliar environments. Entry location (EL) consideration is the first and most critical business strategy for firms to determine "where the markets are", in order t...
Article
This study was conducted to determine the optimum mix proportion of lightweight concrete (LWC) containing expanded polystyrene (EPS) and steel fiber which is designated as Expanded Polystyrene Fibred Lightweight Concrete (EPSF-LWC) for load bearing wall application. In order to produce LWC, EPS beads were chosen as lightweight aggregate because it...
Chapter
Competitive positioning and sustaining the gained international operations are difficult challenges that international construction firms commonly face. The aim of this study is to assess the level of Malaysian contractors’ sustained international operations (CSIO). The measurement scales for the CSIO were developed from secondary data provided by...
Chapter
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Market entry timing decision is among the most critical strategies made by a firm to expand internationally. In a dynamic and competitive international environment, the entry timing decision involves the need to balance the early entry risks and the problems in losing opportunities as a result of late entry. This study proposes a theoretical framew...
Chapter
Nowadays lightweight concrete (LWC) is used on a large scale for structural purposes. The application of structural LWC in the construction industry has many advantages such as saving in dead load for structural design and foundation, reduce the risk of earthquake damage to structure, and good tensile strain capacity. Modulus of elasticity of concr...
Chapter
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Utilization of Recycled Aggregate (RA) in concrete is due to the awareness of society in preserving natural resources for future generation. RA application as coarse aggregate in concrete mixes initiation is to make use effectively of the waste materials. The purpose of this study is to improve the Recycled Aggregate Concrete (RAC) by using the Mic...
Chapter
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Palm oil fuel ash (POFA) and ceramic sludge (CS) are waste materials that found produced abundantly in the palm oil and the porcelain industrial sectors respectively. However, these waste materials are improperly managed that proved can give adverse impacts to the environment and human’s health. This research was carried out in order to identify th...
Article
Lightweight concrete (LWC) is one of the favourable concrete to be used as it has low density with acceptable high strength, high durability, and toughness. In order to produce LWC, it is required special material such as expanded polystyrene (EPS) beads and steel fiber to incorporate with design mix concrete. As known, EPS beads have zero strength...
Article
The paper presents an evaluation of medium-rise reinforced concrete building in Johor which is subjected to low intensity earthquake effects. Even-though Malaysia is outside the earthquake region, the country had experienced and did suffer from major cases due earthquake in the past like tsunami. Engineers should concern and consider the loading fo...
Article
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Fine Grained Mortar (FGM) offers a new innovative technology binder system to strengthen or repair concrete structures. The innovative technique is achieved by using a small maximum grain size of 1 mm for the mortars. Therefore, less than 2 mm of mortar thickness would be fitted between the strengthened layers. FGM also has high binder contents, by...
Article
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This paper proposes a model for entry location (EL) and entry timing (ET) decisions to guide construction firms in accessing targeted international markets. Neglecting to properly choose the right combination of the entry location and entry timing (ELET) decisions can lead to poor performance of the firms' international ventures. The sampling frame...
Conference Paper
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Domestic firms have increasingly turned to foreign countries in gaining investment opportunities brought by globalization. However, to sustain the gained international operations is a challenge for construction firms. The aim of this preliminary study is to assess the level of Malaysian construction firms' sustained international operations (CSIO)....
Conference Paper
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International market expansion is inevitable in a borderless and increasingly globalized world. It involves a process where firms move from operating in their domestic domain to international markets. Three main strategic decisions of firms that plan to engage in the international trades are the entry location (EL), entry timing (ET) and entry mode...
Article
Fatigue damage assessment using non-destructive testing on structures as well as reinforced concrete (RC) beam has become an attention for recent decades. In this paper, diagnostic of fatigue damage in RC beams using acoustic emission (AE) technique was investigated. Based on severity analysis of AE signal strength during service life of the beams,...
Article
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International market entry strategies involve three major decisions: which market to enter (entry location), when to enter the selected location (entry timing) and how to enter (entry mode). Entry modes and factors influencing the entry mode choices have been the subjects of interest in international market strategic management research but is stil...
Conference Paper
Full-text available
Market entry timing decision is among the most critical strategies made by a firm to expand internationally. In a dynamic and competitive international environment, the entry timing decision involves the need to balance the early entry risks and the problems in losing opportunities as a result of late entry. This study proposes a theoretical framew...
Article
Full-text available
Market entry strategy is used to make the firm's entering new foreign market possible to expand their businesses in terms of services, products, technology, human and other resources. It requires the firm to decide which market to enter (market selection decision), how to enter (entry mode decision), and when to enter (entry timing decision). Hence...
Conference Paper
Full-text available
Market entry decision is among the most critical strategies made by a firm to expand internationally. In a dynamic and competitive international environment, entry timing decision involves the need to balance the early entry risks and the problems in losing opportunities as a result of late entry. This study investigates the advantages and disadvan...
Conference Paper
Full-text available
International market expansion involves a strategic process of entry decision through which a firm expands its operation from domestic to international domain. The importance of determining the motives to expand into international market has been widely researched. The existing literature indicates that for construction firms in developing countrie...
Chapter
Active crack due to fatigue loading in reinforced concrete beams is a crucial phenomenon and need to be classified. Twelve beams were tested under three point loading with various fatigue loading in conjunction with acoustic emission monitoring. A total of six phases of fatigue maximum loading were performed on the reinforced concrete beams with fr...
Chapter
Competitive and saturated construction markets has led many domestic firms to expand internationally. Hence, the firms must adopt a superior and an effective strategy in order to endure the increasing dynamics and uncertainties in the foreign markets. In the early stage of strategic planning, one of the basic but important steps is to identify the...
Article
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Market expansion into foreign markets has become increasingly important for construction businesses including Malaysian contractors. Hence, it is imperative that these firms are able to sustain performance in international markets. This paper aims to determine the significant factors influencing the Malaysian contractors’ performance in internation...
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Millions tons of coal ash which constitute of fly ash and bottom ash were produced annually throughout the world. They were significant to be developed as masonry brick to substitute the existing widely used traditional material such as clay and sand brick which were produced from depleting and dwindling natural resources. In the present study, the...
Article
Full-text available
International market expansion involves a strategic process of market entry decision through which a firm expands its operation from domestic to the international domain. Hence, entry timing choices require the needs to balance the early entry risks and the problems in losing opportunities as a result of late entry into a new market. Questionnaire...
Conference Paper
Full-text available
Coal-fired thermal power plant produces million tons of coal ash which constitute of fly ash and bottom ash annually throughout the world. They were by-product and significant to be developed as brick to substitute the existing widely used traditional material such as clay and sand brick which were produced from depleting and dwindling natural reso...
Conference Paper
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The influence of fibres in various level of density of foamed concrete to improve the performance characteristics has been investigated. Fibres used are in two (2) different types which are synthetic (polypropylene fibre) and natural (kenaf fibre). Those fibres were cut into same length which is 15 mm with proportion of 3% by volume in the design m...
Article
Microbial treatments has led to the improvement of concrete but as of yet, few studies showed tangible evidence of using bacteria-induced silica precipitation to improve the strength of concrete. Therefore, this study investigated the effect of using Thermus Thermophilus (TT) to enhance the strength and permeability of concrete. The existing silica...
Conference Paper
International market entry strategy is used to make the firm's entering new foreign market possible to expand their businesses in terms of services, products, technology, human and other resources. Entry decision is among the most critical strategies made by a firm relative to international market expansion. The firm has to decide which market to e...
Conference Paper
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A recent globalization has impacted significantly the construction industry worldwide and it is frequently transformed into creation of new emerging markets. Going international is commonly understood as a strategic process of market entry decision through which a firm moves from operating purely in its domestic market to the international market....
Article
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This study presents the analysis and the benefits from using Micronized Biomass Silica (MBS) of rice husk which comprises of high content of silica. MBS was generated from controlled burning of the husk into off-white biomass silica ash and crushing the ash into micronized size. Concrete samples containing various percentages of MBS were tested for...
Conference Paper
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A tremendous demand of development worldwide has gained interest of Malaysian construction firms to venture into international construction domain. Identifying and analyzing major determinants of the firm's internal and external factors are crucial in order to ease the complexity in global market expansion. This paper identifies the relative import...
Conference Paper
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In construction industry, natural resource like granite has been used as a coarse aggregate for producing concrete. But, nowadays, these natural resources face a depletion problem. As an alternative, Recycled Aggregate (RA) is introduced as an aggregate material in construction industry. This paper discusses on the application of RA as coarse aggre...