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TRABEKA – General contractor in Africa and Belgium (1924–39)
Published in João Mascarenhas-Mateus, Ana Paula Pires, Manuel Marques Caiado, Ivo Veiga, History of Construction Cultures, 2021
TBK's activity began in October 1924. It began with the construction of a workshop for the prefabrication of concrete elements (hollow blocks, ornamental blocks, slabs and tiles, window frames) in Elisabethville (Lubumbashi) (Figure 2). The workshop was operational in 1925, and its production was extended to include other products such as concrete railway sleepers, pylons, pipes, and safes. The workshop was very active until the end of 1929, at a time when the world economic crisis was beginning to be felt, particularly in Congo. From 1930 onwards, the workshop's activity was very reduced. In 1929, TBK started the construction of a factory for the production of fibro-cement elements (corrugated sheets) adjacent to the CIMENKAT cement factory in Lubudi. The factory was commissioned in July 1929 and had to be shut down in May 1931 due to a lack of outlets for its products.
Combating Strategies
Published in Ajai, Rimjhim Bhatnagar, Desertification and Land Degradation, 2022
In mechanical methods, the movement of sand is restricted or slowed down by erecting linear fences. These fences slow down the airflow and thereby restricting/retarding the sand movement. A single linear fence is constructed perpendicular to the prevailing wind direction. In the initial stage, the fence height can be between 1 and 1.5 m so as to prevent the build-up of sand (http://www.fao.org/3/i1488e/i1488e04.pdf). These fences are often made of wooden slats, wood from the locally available trees and scrubs are used for this purpose. In case, wood is not available, fibro-cement or synthetic latticing can also be used.
Energy conservation assessment of traditional and modern houses in Sydney
Published in Building Research & Information, 2021
Haider Albayyaa, Dharmappa Hagare, Swapan Saha
A number of studies have used energy simulation programs to analyse the energy performance of different buildings while considering parameters such as walls, orientation and HVAC (heating, ventilation, and air conditioning) systems in a single-zone house built with a single floor (Bambrook et al., 2011; Hasan et al., 2008). The flooring system used in most previous studies has been a concrete slab directly on the ground. However, older houses were built with raised timber floors, which might significantly increase the energy required for heating and cooling. Fibro houses were commonly built in Australia after World War I. Population increase promoted a housing boom; and there became a need for a new building system that was easy and quick to build and user-friendly. At that time, fibro was a revolutionary product, being durable and easy and cheap to build. Fibro is an abbreviation of fibre-cement sheeting and is a building product with low cost and quick construction characteristics. This resulted in a boom for fibro houses in Australia. In the 1960s, fibro was so popular it was used in almost 20% of the houses constructed in Australia at that time (AARCO, 2018). Recently, Albayyaa et al. (2019) analysed fibro and brick veneer houses. However, this study was limited in scope and did not consider other constructions such as, double brick and reverse brick veneer constructions.