Development Of Hybrid Cementitious Composite (HCC) For Sustainable Construction In Sea Water Environment

Alonge , Olayiwola Richard (2016) Development Of Hybrid Cementitious Composite (HCC) For Sustainable Construction In Sea Water Environment. PhD thesis, Universiti Sains Malaysia.

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Abstract

Perbalahan utama dalam komuniti pembinaan ialah untuk menghasilkan konkrit bertetulang gentian (FRC) yang mempunyai ciri-ciri kejuruteraan yang baik serta keupayaan lenturan yang lebih tinggi. Metakaolin (MK) mempamerkan potensi yang sangat baik sebagai bahan bersimen tambahan (SCM) kerana tahap kereaktifan pozzolan yang tinggi serta pengurangan Ca(OH)2 seawal satu hari untuk menghasilkan kekuatan awal. Demikian juga, ia menguatkan adunan campuran simen untuk menjalani proses pemadatan yang telah ditetapkan. Proses penerokaan eksperimen ini melibatkan penghasilan MK oleh makmal yang berasal daripada kaolin mentah dan pencirian MK dalam empat campuran adunan simen yang terdiri daripada simen, Coloids Nanosilica (CNS) dan Epoxy Resin. Komposisi kimia dan sifat fizikal MK telah dinilai menggunakan penganalisis laser partikel zarah, X-ray Fluorescence (XRF) dan X-ray Diffraction (XRD). The major challenge in the construction community is to advance a new type of fibre reinforced concrete (FRC) which possesses favourable engineering features that yield a high flexural ability. Metakaolin (MK) display great potentials as a supplementary cementitious material (SCM) because of its high pozzolanic reactivity as well as reduction of Ca(OH)2 as early as one day to produce early strength. Likewise, it intensifies the blended cement paste to undergo definite densification. The experimental exploration involves the laboratory production of MK from raw kaolin and characterization of MK quaternary blended cement mortar consists of cement, colloids nanosilica (CNS) and epoxy resin. The chemical compositions and physical properties of the MK were appraised using a laser particle size Analyzer, Xray Fluorescence (XRF) and X-ray Diffraction (XRD).

Item Type:	Thesis (PhD)
Subjects:	T Technology > TH Building construction > TH1-9745 Building construction
Divisions:	Pusat Pengajian Perumahan, Bangunan & Perancangan (School of Housing, Building & Planning) > Thesis
Depositing User:	Mr Noorazilan Noordin
Date Deposited:	16 Jan 2017 00:35
Last Modified:	12 Apr 2019 05:25
URI:	http://eprints.usm.my/id/eprint/31587

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