Explain why a high-carbon steel would not be suitable for reinforcement for concrete. Suggest why lightweight premixed...

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Civil Engineering

Explain why a high-carbon steel would not be suitable forreinforcement for concrete.
Suggest why lightweight premixed gypsum plasters have becomevery popular in recent years.
Why mortar used for clay bricks should not be stronger thannecessary? Explain
List: Granite, Limestone, Sandstone, Travertine, and Marbleaccording to their acid resistance (from best to worst).
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Suppose that you have â€œOPC, Rapid Hardening PC, High AluminaCement, White PC, Portland Blast Furnace Slag Cementâ€ at yourconstruction site. Which type (only one) of these would you preferto use for the conditions given below? (5%) a. Concreting veryclose to Golden Sand Beach, Karpaz Peninsula, Cyprus: b.Reinforced-concrete column: c. Concreting in Cyprus at an airtemperature above 35 degrees Celcius: d. Reinforced concrete watertank construction: e. Reinforced-concrete slab at an airtemperature of 2 degrees Celcius:
Put â€œTâ€ for true and â€œFâ€ for false statements below. (5%) a.Plaster of Paris is obtained by calcination of gypsum rock at 190degrees Celsius. b. Slaking of lime is obtained to remove air andwater completely from limestone. c. Mixture of uniform sizeaggregates causes friction at many points. d. Workability of freshconcrete can be measured indirectly by slump test. e. Sea waterattack is an internal factor affecting durability of concrete

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Explain why a highcarbon steel would not be suitable for reinforcement for concrete High carbon steel over traditional steel Because its so strong carbon steel is difficult to work with It cant be easily bent and molded into different shapes thus limiting its utility in certain applications Carbon steel is also more susceptible to rust and corrosion than other types to steel So its not used in reinforcement concrete works Suggest why lightweight premixed gypsum plasters have become very popular in recent years Premixed lightweight plasters essentially consists of gypsum plaster and lightweight aggregate which are characterized by low density high thermal insulation and sound absorption properties and can be readily used for building purposes Salient Features Premixed light weight plaster Easy workability Easy to mix Easy to apply Free from inherent shrinkage cracks Classified as noncombustible Low Thermal Conductivity Light Weight Better strenght to weight ratio as compared to density Low density Better sound absorption Better paint coverage Why mortar used for clay bricks should not be stronger than necessary The cost and quality of masonry work is significantly affected by the mortar used Mortars may account for as little as 7 of the volume of the walls but the role it plays and the influence it has on performance are far greater than the proportion indicates Mortar provides a bed for laying bond units together to give compressive and flexural strength and seals joints against rain penetration Explain Granite Limestone Sandstone Travertine and Marble according to their acid resistance from best to worst GRANITE Granite is the most durable of the stone surfaces which makes it the best choice for a worryfree countertop It is extremely durable stain resistant and easy to care for It is chip acid resistant and is unlikely to crack or scratch during normal useGranite is not nearly as sensitive to the acid MARBLE Marble stone is relatively softer than other stones and offers less stain resistance Thus it requires careful maintenance and should be treated as fine furniture Marble is susceptible to damage from citric acids alcohols and oils Spills should be wiped up immediately Treated properly marble will remain See Answer

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