ÑDz©ÌåÓý¹ÙÍøÊ×Ò³

Supreme Industries´ Construction Accessories Division has developed customised solutions for expansion joints, specifically for the construction requirement of various sectors. The term expansion joints, refer to the isolation joints provided within a structure to permit the separate segment of the structural frame to expand and contract in response to temperature changes without adversely affecting the structural integrity or serviceability. The need for expansion joints in buildings may be determined initially on an empirical basis. The subject of expansion joints in the construction of concrete highways has been considered controversial by many; however, there are only a few important areas of disagreement among those who understand the basic engineering principles involved. Critical function Anyone familiar with the coefficient of expansion of concrete, realises the necessity of providing adequate expansion joints; also the necessity to eliminate intermediate cracks by creating planes of weakness to predetermine the location of contraction cracks. In the contractor´s zeal to lower the cost of concrete highway construction, some engineers have been using only sawed joints, completely disregarding the important function of properly spaced through expansion joints. Since roads and buildings, being the second largest activity in the economy after agriculture, the role of expansion joints in these areas has become critical. Hence, to bridge the gap between cost effectiveness coupled with high quality, Supreme Industries Ltd´s Construction Accessories Division has developed customised solutions specifically for the construction requirement of various sectors. Supreme´s DURAboardHD100, DURArods and DURAsilstrip, are the three aces which cater to the need of building or road structure, assuring the structure with a great bonding. High performance Supreme´s DURAboardHD100 is a crossed-linked, pre-moulded, high performance joint filler board, which is readily compressible and ensures low load transfer. This structural expansion joint application can be used in concrete brick and block work; it also helps isolation to fill its gap and work as a backup supporter for sealant. Another feature is that it can be used for the expansion joints in concrete highway, taxi tracks, and most importantly, in airport runway. How are buyers going to benefit from this product? It comes with closed cell, has excellent chemical resistance, is thermally stable (ranges from -40¦C to +70¦C), and most importantly, is bitumen free, rot proof and bacteria resistant. It is available in thickness ranging from 8 mm to 100 mm sizes. In addition, the product is a closed-cell polymer based circular profile, which ensures stronger bonding of sealant with masonry, aluminium or other substrates and helps to maintain desired thickness of sealant at the joint´s centre. Importantly, it does not bond with cold applied sealants. The product can be used in applications like pre-cast panel joints, coping joints, contraction joints, expansion joints, glazing joints as well as isolating joints, and window and door frame parameters. Sealant back-up DURArods works as a back-up to sealant in structural glazing systems. The product is available from 6 mm to 60 mm size. It offers closed cell, hence negligible water or moisture absorption; excellent chemical resistance - inert to most acid and alkalis and cost effective space filler. It also allows unrestrained expansion and contraction of sealant while eliminating bubbling of sealant. Bond breaker The product is a closed cell, compressible polymer based material (paper) backed on one side as per IRC: 57-2006-6.3 and 6.4. DURAsilstrip ranges from 2 mm to 12 mm size, however other sizes are also available on request. The product works as a bond brakes between any cold applied sealant and fourth surface in contraction or expansion joints. This also works as a back-up to cold applied sealants in concrete road. Additionally, it has compressible and flexible joint movements along with non-staining, which means it does not disintegrate. All structures move by necessity to avoid buckling, which can cause structural failure. The need to be aware Architects, general contractors, owners and end-users are adverse to seeing caulk joints or movement profiles, as they think it destroys the ambiance of the building. Awareness of the need for movement joints in installations, needs to begin at the sale or specification stage, well before ordering products and certainly before the installer arrives on site. (Communication by the management of the company)