Rock Products

MAR 2018

Rock Products is the aggregates industry's leading source for market analysis and technology solutions, delivering critical content focusing on aggregates-processing equipment; operational efficiencies; management best practices; comprehensive market

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86 • ROCK products • March 2018 www.rockproducts.com The walls of steel and concrete silos have been known to wear or fail causing cracking, denting, buckling and bending that can lead to catastrophic collapse. For operations that want to detect uneven loading of silos that contribute to these failures, BinMaster offers a new software option that uses the company's 3DLevelScanners to identify the location of the center of gravity, display it graphi- cally, and alert when the center of gravity falls outside of a predefined area. A 3DLevelScanner is mounted on the roof of the silo in an optimal location to view the material surface in the silo. Level measurements are used to determine the X, Y and Z coordinates of the center of gravity based upon the material topography. The coordinates are processed in the 3D MultiVision software via a proprietary RS-485 communication protocol. Users define the alert parameters and accepted area into which the center of gravity must fall. A 3D visual will indicate where the center of gravity is located and show the acceptable area. Operations can use this unique solu- tion to help reduce structural stress when loading or emptying a silo. It is a valuable preventive maintenance tool that can alert to the need for inspection or cleaning. Use over time can prolong silo integrity and create a safer environ- ment by alerting to potential structural stress caused by uneven loading. BinMaster, www.binmaster.com Industrial Waste to Green Cement By Ganesh Rajput The rise in construction and building activities is the pri- mary growth driver for the global green cement market. The demand for these types of cement is being accelerated by uptake of alternative fuels derived from waste materials such as foundry sand, used oils, sewage sludge, solid recov- ered fuels, filter cakes, animal meals and fly ash. The urgent need to cut down carbon emissions is encouraging usage of these fuels. The market is also gaining an impetus from governments, which are promoting green architecture to ensure sustainable building, which is certified under Leader in Energy and Environment Design (LEED). The demand for green cement is also soaring as it is known to safeguard the buildings from sulfate attacks and heat stress that is caused due to water and moisture. The superior resistance offered by green cement to several commercial as well as residential construction projects as it contains lesser alkali compound in comparison to OPC is also projected to play an important role in the market's development. The upcoming projects such as the construction of bridges and pavements, nuclear power plants, and other infrastructural developments are expected to present a plethora of lucrative opportunities to the overall market. Quality Issues to Impede Market Growth The strength of green cement has been a topic of debate amongst several end users as it entirely depends on the type of industrial waste used for the manufacturing processes. For instance, usage of low calcium fly ashes is known to compromise the strength in early stages as compared to OPC. In case such cement is used it can lead to product fail- ure. Thus, the uncertainty of the quality of green cement is projected to restrain the growth of the global market in the coming years. The top five players in the global green cement market held a lion's share of 51 percent in the overall market in 2015. These leading players are HeidelbergCement AG, China National Building Material, Lafarge S.A., Cemex S.A.B. de C.V., and Tai- heiyo Cement Corp. These companies have been focused on strategic mergers and acquisitions to expand their capacity, observed Transparency Market Research. "Persistent focus on technological developments and product differentiation to add value to products are expected to be one of the winning strategies of these companies," said the lead author of the research report. According to the report, the global green cement market is expected to be worth $38.10 billion by the end of 2024 as compared to $14.80 billion in 2025. During the forecast period of 2016 and 2024, the global market is projected to exhibit a CAGR of 11.3 percent. Products 3D MultiVision Software Alerts to Center of Gravity Danger

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