The main objective is to produce lightweight concrete with adequate strength. The study here applied foaming agent to produce concrete that are lightweight.
This research is part of an on-going effort to produce strong foundation on soft soils using concrete as the base. The main objective is to produce lightweight concrete with adequate strength. The study here applied foaming agent to produce concrete that are lightweight.
The basis of this ongoing study is to obtain a mix-proportion that would produce concrete that are lightweight yet strong for use as road base. Several mixing attempts have been made to produce normal and high performance concrete, respectively.
Among problems faced is foam instability after casting, mixes segregation, concrete brittleness, determination of foam optimal amount, and the achievement of a lightweight density. At present investigation, adding foam to self-compacting (SC) mixes showed a more positive outcome that other mixes; the hardened concrete is strong stable and light.
The study now narrows down to the SC mixes as a base for determining the optimum amount of mix proportion for foamed concrete to be used as road base on soft soil. In addition, further investigations are needed on the design aspect of the foundation, floatability, optimum strength and density, as well as use of fly ash and recycled plastics.
Researchers: Mohd Ibrahim Safawi M Zain, Abd Razak Abd Karim, Jethro Henry Adam
Multi-year study finds 'hotspots' of ammonia over world's major agricultural areas
17.03.2017 | University of Maryland
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17.03.2017 | Deutsches Institut für Ernährungsforschung Potsdam-Rehbrücke
The Institute of Semiconductor Technology and the Institute of Physical and Theoretical Chemistry, both members of the Laboratory for Emerging Nanometrology (LENA), at Technische Universität Braunschweig are partners in a new European research project entitled ChipScope, which aims to develop a completely new and extremely small optical microscope capable of observing the interior of living cells in real time. A consortium of 7 partners from 5 countries will tackle this issue with very ambitious objectives during a four-year research program.
To demonstrate the usefulness of this new scientific tool, at the end of the project the developed chip-sized microscope will be used to observe in real-time...
Astronomers from Bonn and Tautenburg in Thuringia (Germany) used the 100-m radio telescope at Effelsberg to observe several galaxy clusters. At the edges of these large accumulations of dark matter, stellar systems (galaxies), hot gas, and charged particles, they found magnetic fields that are exceptionally ordered over distances of many million light years. This makes them the most extended magnetic fields in the universe known so far.
The results will be published on March 22 in the journal „Astronomy & Astrophysics“.
Galaxy clusters are the largest gravitationally bound structures in the universe. With a typical extent of about 10 million light years, i.e. 100 times the...
Researchers at the Goethe University Frankfurt, together with partners from the University of Tübingen in Germany and Queen Mary University as well as Francis Crick Institute from London (UK) have developed a novel technology to decipher the secret ubiquitin code.
Ubiquitin is a small protein that can be linked to other cellular proteins, thereby controlling and modulating their functions. The attachment occurs in many...
In the eternal search for next generation high-efficiency solar cells and LEDs, scientists at Los Alamos National Laboratory and their partners are creating...
Silicon nanosheets are thin, two-dimensional layers with exceptional optoelectronic properties very similar to those of graphene. Albeit, the nanosheets are less stable. Now researchers at the Technical University of Munich (TUM) have, for the first time ever, produced a composite material combining silicon nanosheets and a polymer that is both UV-resistant and easy to process. This brings the scientists a significant step closer to industrial applications like flexible displays and photosensors.
Silicon nanosheets are thin, two-dimensional layers with exceptional optoelectronic properties very similar to those of graphene. Albeit, the nanosheets are...
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