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 Chemical admixtures are the ingredients in concrete other than portland cement, water, and aggregate that are added to the mix immediately before or during mixing. Producers use admixtures primarily to reduce the cost of concrete construction; modify the properties of hardened concrete; ensure the quality of concrete during mixing, transporting, placing, and curing; and overcome certain emergencies during concrete operations. Top construction chemical company in India successful use of admixtures depends on appropriate methods of batching and concreting. Most admixtures are supplied in ready-to-use liquid form and are added to the concrete at the plant or the job site. Certain admixtures, such as pigments, expansive agents, and pumping aids, are used only in extremely small amounts and are usually batched by hand from premeasured containers. The effectiveness of concrete admixture manufacturers depends on several factors, including type and amount of cement, water content, m...

 Diagnosis Techniques for concrete structures elaborates on the techniques available to diagnose the structure concrete members using non-destructive and partial destructive techniques. Following are Diagnosis Techniques for Concrete Structures: ·          Visual assessment ·          Hammer or Chain- delamination’s ·          Covermeter – Presence of reinforcement ·          Chloride Analysis ·          Phenolphthalein test for Carbonation ·          Half Cell measurement ·          Resistivity ·          Corrosion rate (linear polarisation) ·          Permeability ·       ...