26 October 2021
Concrete news and innovations in and around the Middle EastSIGN UP ⋅   SHARE
Industry News
Mounting coal and petcoke prices and increasing fuel and transport costs worldwide are pushing cement producers to raise prices, according to an analysis by David Perilli. The costs of electric energy, coupled with a renewed demand for cement as world economies emerge from the pandemic, have also played a part, Perilli writes.
Full Story: Global Cement (20 Oct.) 
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ACI News
The main objectives of this ACI guide are to explain the intent and application of ACI 318 STM provisions, provide additional design guidance for the STM based on other design codes, specifications, and committee documents, and present design recommendations from recent research publications. ACI members have free digital access.
Technology & Trends
Researchers have observed that strain-hardening ultra-high-performance concrete with synthetic fibers exhibited greater tensile ductility and lower modulus in the cracked state than steel-reinforced UHPC. They also have found seawater and sea-sand have almost no adverse effects on the 28-day mechanical properties of strain-hardening UHPC with high-density polyethylene fibers.
Full Story: MDPI (Switzerland) (18 Oct.) 
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A researcher in Saudi Arabia has found that textile-reinforced concrete had better flexural performance than steel-reinforced concrete for rectangular concrete beams. "The findings showed that anchoring the textiles at both ends enhanced load resistance and prevented sliding," researchers wrote.
Full Story: MDPI (Switzerland) (20 Oct.) 
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Sustainability & Green Building
Carbon emissions from construction were down 10% last year when compared with 2019, but the industry still accounted for 37% of energy-related CO2 emissions, according to the UN Environmental Programme's latest Global Status Report for Buildings and Construction. However, the improvement is attributed largely to pandemic lockdowns, with little improvement traced to decarbonization efforts.
Full Story: United Nations (19 Oct.) 
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A team of nine students from the University of Technology and Applied Sciences in Muscat, Oman, won the Injaz Oman competition for designing cement made partly from sewage waste. The product, known as Shabk, offers an eco-friendly alternative to traidtional cement.
Full Story: Muscat Daily (Oman) (11 Oct.) 
A literature review of studies of nanomaterials in concrete found many innovative uses in construction. Researchers wrote that nonmaterials "have the capability to increase the durability of buildings by improving their mechanical and thermal properties."
Full Story: MDPI (Switzerland) (25 Oct.) 
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Problem-solving is hunting; it is savage pleasure and we are born to it.
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