Sains Malaysiana 47(8)(2018): 1897–1906

http://dx.doi.org/10.17576/jsm-2018-4708-31

 

Behaviour of Walls Constructed using Kelempayan (Neolamarckia cadamba)

Wood Wool Reinforced Cement Board

(Tingkah Laku Dinding yang Dibina menggunakan Lembaga Simen Bertetulang

Tatal Kayu Kelempayaan (Neolamarckia cadamba)

ZAKIAH AHMAD¹, LUM WEI CHEN^1*, LEE SENG HUA² & WAN FATIHAH WAN MOHD MAHYIDDIN¹

 

¹Institute for Infrastructure Engineering and Sustainable Management (IIESM), Universiti Teknologi MARA, 40450 Shah Alam, Selangor Darul Ehsan, Malaysia

 

²Institute of Tropical Forestry and Forest Products, Universiti Putra Malaysia, 43400 UPM Serdang, Selangor Darul Ehsan, Malaysia

 

Diserahkan: 24 Januari 2018/Diterima: 7 April 2018

 

 

ABSTRACT

This research investigated the behaviour of walls produced from wood wool cement board (WWCB) which were reinforced with a lesser known commercial timber, Kelempayan, when subjected to compression load. Kelempayan timbers were shredded into wood wool and used as reinforcement agent in this study. WWCB having dimensions of 600 × 2400 × 50 mm and 600 × 2400 × 75 mm, respectively, were fabricated. Properties of the WWCB samples, namely swelling, bending and compression strength were tested. 75 mm WWCB has higher fracture toughness but lower strength compared to 50 mm WWCB. Four types of wall systems with different type of configuration were produced and the test results were compared focusing on their value of ultimate load and failure mode. Walls that constructed without application of link and plaster displayed the poorest performance. Plastered and linked wall had the highest ultimate load and comparable with other load bearing walls. The results suggested that walls constructed using WWCB reinforced with Kelempayan wood wool are suitable for load bearing as they exhibited comparable properties when compared to the other load bearing walls such as masonry and straw bale wall.

 

Keywords: Failure; Kelempayan; reinforced cement; wall system; wood wool

 

ABSTRAK

Penyelidikan ini mengkaji kelakuan dinding yang dihasilkan daripada papan simen tatal kayu (WWCB) yang diperkuat dengan kayu komersial yang kurang dikenali, iaitu kayu Kelempayan, apabila dikenakan daya kompresi. Kayu Kelempayan dipotong menjadi tatal kayu dan digunakan sebagai agen pengukuhan dalam kajian ini. WWCB yang berdimensi 600 × 2400 × 50 mm dan 600 × 2400 × 75 mm telah dihasilkan. Ciri seperti perubahan dimensi, kekuatan lenturan dan mampatan WWCB telah diuji. 75 mm WWCB mempunyai ketangguhan retak yang lebih tinggi tetapi kekuatan yang lebih rendah berbanding dengan 50 mm WWCB. Empat jenis sistem dinding dengan konfigurasi yang berbeza telah dihasilkan dan keputusan ujian dibandingkan dengan penilaian nilai beban muktamad dan mod kegagalan. Dinding yang dibina tanpa penggunaan pautan dan plaster mempamerkan prestasi terendah. Dinding yang mempunyai pautan dan plaster mempunyai beban muktamad tertinggi. Berdasarkan keputusan yang didapati, ia menunjukkan bahawa dinding yang dibina menggunakan WWCB yang diperkuatkan dengan tatal kayu Kelempayan adalah sesuai untuk penanggulan beban kerana ia mempamerkan sifat yang setanding berbanding dengan dinding penanggulan beban yang lain seperti tembok batu dan dinding jerami.

 

Kata kunci: Kegagalan; Kelempayan; simen diperkukuh; sistem dindang; tatal kayu

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*Pengarang untuk surat-menyurat; email: lumweichen@outlook.com