The deterioration of a particular material depends on how and to what extend it interacts with its surrounding. Thus, durability is definitely one of the main concerns in designing as it directly relates to the maintenance of the structural integrity of a structure throughout its service life.
Malaysia's tropical climate can pose hazard to many concrete structures as high temperature and high humidity can affect the chemical interaction between concrete's alkaline property and its surrounding. In this case, concrete durability is related to its ability to withstand exposure to condition such as UV radiation, temperature, rain and wind.
In many advanced countries, epoxy resins concrete are used in many applications such as aircraft, aerospace, and composite reinforcing concrete products which includes repair and appraisal works in civil engineering particularly as reinforcement in concrete.
The resin is formed by the chemical reactions of epoxy groups with amines, alcohols, phenols and others.
Epoxy resin concretes exposure to four season's climate has been investigated and significant effect was found on the strength properties of the concretes. There is a need to understand the behaviour of epoxy resin concrete under Malaysia climatic stress. When the behaviour of its strength is understood, design durability and repair works for structures with epoxy resins in this region can be predicted.
The objectives of this research, therefore, are to construct a correlation between atmospheric exposure and wet-dry condition with the durability of epoxy resins concrete; to predict durability from the permeability, porosity, and shrinkage testing; and to compare atmospheric exposure with laboratory conditions.
This research is conducted by Idawati Ismail, Mohd Ibrahim Safawi M Zaid and Azida Rashid of Universiti Malaysia Sarawak and Abdul Aziz Ismail of Universiti Teknologi Malaysia.
Scientists have a new way to gauge the growth of nanowires
19.03.2018 | DOE/Argonne National Laboratory
Researchers demonstrate existence of new form of electronic matter
15.03.2018 | University of Illinois at Urbana-Champaign
For the first time, an interdisciplinary team from the University of Basel has succeeded in integrating artificial organelles into the cells of live zebrafish embryos. This innovative approach using artificial organelles as cellular implants offers new potential in treating a range of diseases, as the authors report in an article published in Nature Communications.
In the cells of higher organisms, organelles such as the nucleus or mitochondria perform a range of complex functions necessary for life. In the networks of...
Animal photoreceptors capture light with photopigments. Researchers from the University of Göttingen have now discovered that these photopigments fulfill an...
On 15 March, the AWI research aeroplane Polar 5 will depart for Greenland. Concentrating on the furthest northeast region of the island, an international team...
The world’s second-largest ice shelf was the destination for a Polarstern expedition that ended in Punta Arenas, Chile on 14th March 2018. Oceanographers from...
At the 2018 ILA Berlin Air Show from April 25–29, the Fraunhofer Institute for Laser Technology ILT is showcasing extreme high-speed Laser Material Deposition (EHLA): A video documents how for metal components that are highly loaded, EHLA has already proved itself as an alternative to hard chrome plating, which is now allowed only under special conditions.
When the EU restricted the use of hexavalent chromium compounds to special applications requiring authorization, the move prompted a rethink in the surface...
19.03.2018 | Event News
16.03.2018 | Event News
13.03.2018 | Event News
20.03.2018 | Earth Sciences
20.03.2018 | Physics and Astronomy
20.03.2018 | Information Technology