Background The Al-Falak building is a residential/commercial building in Dammam, Saudi Arabia. When investigating waterproofing options for the building's below grade slab, walls and water tank, the project team knew they needed a system that was cost-effective and low-maintenance. However, their search was made more complicated by a number of factors. First, the area's soil … Read More
Backed up with our intense experience & Technical awareness, we are always striving to be the best in all the fields we are involved into. Although Alhandsya is rather new in the Egyptian market, we have succeeded in recruiting lots of highly trained & incomparable experienced staff…that gives us all the credibility & trust with … Read More
Background Consistent electricity is one of the major issues facing India; in 2005 GMR Energy started developing a 330 megawatt hydroelectric dam and power plant in Uttarakhand, just outside the town of Srinigar to help satisfy the growing demand for power. Over time, concrete that is not properly waterproofed can deteriorate and fail, which can … Read More
Saving an Owner $69,000 with Cost-Effective Waterproofing Background In the late 2000s, Alghanim Industries chose to build a new garage for their business. Valued at $45 million, this structure was set to be one of the largest garage facilities in the world. It would be extensive enough to service and park over 1,000 cars on … Read More
Helping the City of Lusail Meet the Grand Expectations of the 2022 World Cup Background To display how far Qatar has progressed as a country over the years, Qatari Diar Real Estate Investment Co. started developing an entire city from scratch. Known as Lusail, the city is expected to host the World Cup in 2022 … Read More
salts of alkali metals, principally sodium and potassium; specifically sodium and potassium occurring in constituents of concrete and mortar, usually expressed in chemical analyses as the oxides Na 2 O and K 2 O. (See also low-alkali cement.)
susceptibility of aggregate to alkali-aggregate reaction.
chemical reaction in either mortar or concrete between alkalies (sodium and potassium) from portland cement or other sources and certain constituents of some aggregates.
the reaction between the alkalies (sodium and potassium) in portland cement and certain carbonate rocks, particularly calcitic dolomite and dolomitic limestones, present in some aggregates.
the reaction between the alkalies (sodium and potassium) in portland cement and certain siliceous rocks or minerals, such as opaline chert, strained quartz, and acidic volcanic glass, present in some aggregates.
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