دانلود رایگان مقاله انگلیسی توسعه بتن سبز از زباله های زراعی و ساختمانی - اشپرینگر 2018

36.1 Introduction

In the 11th Malaysia Plan (Economic Planning Unit 2015), the Malaysian construction industry has been urged to change from the conventional construction method to Industrialised Building System (IBS) to attain better construction quality and productivity. The use of IBS has been made compulsory in the construction of public buildings, and the adoption of this alternative construction system was fully supported by the government through programmes, incentives and encouragement policies stipulated under the IBS Roadmap 2011–2015 (CIDB 2010). Through the recently launched Construction Industry Transformation Plan 2016–2020 (CIDB 2015), see Fig. 36.1, the government, together with the Construction Industry Development Board (CIDB), will be emphasizing on a construction system which is environmentally sustainable, in line with the requirements of green construction and the reduction of carbon emission of CO2.

36.7 Conclusions

The need for going green is an essential element for producing an environmentally sustainable construction. Malaysia through its Construction Industry Transformation Plan (CITP) 2016–202 has laid its strategies in producing a construction system which is eco-friendly and environmentally sustainable. To ensure the success of this strategic plan, Jamilus Research Centre of Universiti Tun Hussein Onn Malaysia together with the University of Greenwich will be engaging in a research on green concrete utilizing agricultural and construction waste materials. Literature has shown that research on green concrete has been conducted for the past two decades worldwide. The utilization of agricultural waste with pozzolanic properties and construction waste shows an enhancement in the compressive and tensile strength of concrete. Further addition of palm oil fibres as binders essentially upgrades the concrete flexural strength and cracking properties. From observation of past and present research work, replacing cement with POFA and RHA by 20% and 10% enhances the concrete strength by up to 10%. Adding 0.1–0.2% of POF has also been recorded to have improved its strength and cracking properties of concrete with fibres not exceeding 5 cm long. Likewise, replacing natural aggregates with 50% RCA shows an improvement to its concrete compressive strength, but slight reduction in its flexural strength was observed.