Consider the following cements: Cement 1: CEM I 42.5 R with Blaine fineness of 3500 cm2/g Cement 2: CEM I 42.5 R with Blaine fineness of 3800 cm2/g Cement 3: CEM II/B-W 42.5 R with Blaine fineness of 3500 cm2/g Cement 4: CEM II/B-W 42.5 R with Blaine fineness of 3800 cm2/g (Assume that same clinker and mineral admixture is used in these cements)   a)       Which cement is supposed to be cheaper? Why? b)      Which cement is supposed to be more suitable for hot weather? Why? c)       Which cement is supposed to have the highest early strength? Why? d)      Which cement is supposed to give less damage to the environment? Why?

Q: what is the moment at point O

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Q: What is the recommended volume of Portland cement that can be replaced by fly ash? OA) 40-50% O B)…

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Q: Compute for the concrete mix proportion for a 6" diameter concrete cylinder mold with 12" height and…

A: Use ACI 318 All tables are taken from ACI 318 1. Find Characteristics Strength of concrete : f'c =…

Q: Explain the origin of LSF for cement manufacture by drawing a relevant ternary diagram and writing…

A: Answer:- Clinker formation:- When the production of cement is going on then at kilning stage a dark…

Q: th a 3-inch slump, w/c ratio of 0.50, and sand with a fineness modulus of 2.4 contains 1700 lb/ cu.…

A: Given:- slump = 3inch w/c ratio=0.5 fineness modulus =2.4 coarse aggregate =1 700 lb/cu yd. w/c…

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A: The water to cement ratio compares how much water versus cement is used in a concrete mix. A low…

Q: Calculate the weight of moist gravel

A: Given Data:water-cement ratio =0.45dry gravel= 1258kg/m3water of 122kg/m3Air content =…

Q: You are working on a concrete mix design that requires each cubic yard ofconcrete to have 0.45…

A: Given:- The water-cement ratio of the concrete = 0.45 The unit weight of the dry gravel = 1165 kg/m3…

Q: 3. Which of the following two cements (Cement A and Cement B) will you recommend for repair of a…

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Types of Cement

Cement is a fine mixture of limestone, chalk, or marl and clay which when mixed with water, becomes compacted due to the formation of strong molecular bonds. Due to hydration, cement turns into a hard mass when left for a sufficient amount of time upon mixing with water. The water turns the cement compounds into gel-like submicroscopic particles having higher surface areas. It is due to the hydration properties of cement, they are often known as hydraulic cement. For instance, Portland cement is a popular example in this category.