Norhaizura Yahya
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Preferred name
Norhaizura Yahya
Official Name
Norhaizura, Yahya
Alternative Name
Yahya, N.
Norhaizura, Y.
Main Affiliation
Scopus Author ID
57186361300
Researcher ID
EFN-2545-2022

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  • Publication
    Mechanical and rheological properties of concrete with ceramic tile waste as partial replacement of fine aggregate
    ( 2020)
    Norhaizura Yahya
    ;
    Sk Muiz Sk Abdul Razak
    ;
    M K Othman
    ;
    S N A M Noor
    ;
    Khairunnisa Muhamad
    ;
    M K M Jaih
    The rapidly increasing in population has led to the higher of construction, repairing and renovation activity that lead to produce large amount of construction material waste. The disposal of broken ceramic tiles during construction is one of the factors which contribute to this matter and can lead to land pollution. On the other hand, the natural resource in construction such as fine aggregate also facing depletion in order to cater the current and future demand. Therefore, this paper explores the properties of concrete with ceramic tile waste used as a partial replacement for fine aggregate. About 45 cube samples, 30 prism samples and 15 control samples were casted. Various percentage of ceramic tile waste has been introduced as partial replacement for fine aggregate with proportion of 10%, 15%, 20% and 30%. Tests for mechanical and rheological properties which have been done to identify the concrete performance are compressive strength, flexural, water absorption and slump test. From the results obtained, the sample of concrete contain of 15% ceramic tile waste as fine aggregate replacement has reached the optimum strength in both compressive strength and flexural strength. However, by using 20% of ceramic tile waste as fine aggregate replacement does show higher workability and water absorption.
  • Publication
    Influence of rice husk ash (RHA) on performance of green concrete roof tile in application of green building
    ( 2020-06-10)
    Khairunnisa Muhamad
    ;
    Norrazman Zaiha Zainol
    ;
    Norhaizura Yahya
    ;
    Siti Nur Aishah Mohd Noor
    ;
    Nurul Huda Hashim
    ;
    Danial Zikry Shahrazi
    This paper studies on the development of green concrete roof tiles by using rice husk ash (RHA) as a partial replacement of cement as a green material. Rice husk is a product of agricultural waste that can be found easily and in large quantities due to increased annual paddy production in Malaysia. Demand for cement in construction has increased over the years as a result of over dependence on the modern building materials, which are so expensive that low income earners cannot afford building houses of their own. Besides, the satisfaction of building users is closely related to thermal comfort which is a complex dynamics of temperature and humidity. In this study, cement was replaced by the RHA at 0% until 20% by weight. Roof tiles performance were assessed based on Malaysian Standard (MS) requirement comprised of transverse strength, water absorption and water permeability. Results show that up to 10% of RHA give a good performance of concrete roof tiles which comply with Malaysia Standard.
      9  47
  • Publication
    Green roof performance under malaysia tropical climates: a review
    (Institute of Advanced Engineering and Science (IAES), 2020)
    Nur Fitriah Isa
    ;
    Hartini Kasmin
    ;
    Norhaizura Yahya
    ;
    Mustaqqim Abdul Rahim
    ;
    Zuhayr Md Ghazaly
    Green roof system is one of sustainable approach for energy consumption reduction and improving the aesthetic value of the built environment. The system has been adopted by most of developed countries; and in Malaysia, research on green roof studies are quite evolving however the implementation of the system is slow due to some perceptions and obstacles. Green roof has potential on providing benefits such as reduction on the urban heat island effect, reduces temperatures, pollution and improves the attenuation of stormwater. This paper will highlights on a preliminary review of the implementation green roof system in Malaysia and explores the performances of Malaysian green roof in order to highlight the performance of green roof under tropical climatic conditions using local configurations.
      9  2
  • Publication
    Influence of various sand gradation on mechanical properties and concrete quality of High Performance Concrete (HPC)
    (IOP Publishing, 2020)
    K Muhamad
    ;
    Nur Fitriah Isa
    ;
    N H Hashim
    ;
    Z Tusimin
    ;
    Norhaizura Yahya
    ;
    Nurul Akmam Naamandadin
    ;
    Rafiza Abd Razak
    ;
    P Y Tham
    High Performance Concrete (HPC) has a few characteristics: high strength, high early strength, high modulus of elasticity, high durability and long life in severe environments, low permeability and diffusion, resistance to chemical attack, toughness and impact resistance and so on. Almost 70 to 80% of the volume of the concrete is occupied by aggregate which have a great impact on characteristics and properties of a concrete. Not only course aggregate but fine aggregate also contributes a lot toward the performance of HPC. Thus, this research studied on the influence of various sand gradations on mechanical properties and concrete quality of HPC. The sand gradation utilized in the study are normal size sand, sand passing through sieve size 1180µm, sand passing through sieve size 600µm and sand passing through sieve size 300µm. The mechanical properties of HPC being studied are compressive strength and splitting tensile strength while the concrete quality of HPC is determined by using water absorption and Ultrasonic Pulse Velocity (UPV) test. The results show that the mechanical properties and concrete quality increased as the size of sand particles decreased. The optimum sand gradation is the sand passing through sieve size 300µm which achieved highest mechanical properties and concrete quality showing the highest result of compressive strength (123.9MPa), splitting tensile strength (8.91N/mm2), lowest percentage of water absorption (0.55%) and highest UPV value (7743N/mm2).
      11  1