Which of the following is considered as the positive effects of portlandite (Ca (OH) 2) in cement. A) Creating an acidic environment B) Prevention of reinforcement corrosion C) Filling the gaps D) None E) Creating gel spaces

Q: Hydration of cement is due to chemical action of water with Tetra calcium Aluminoferrite Tricalcium…

A: Answer: d)Tricalcium silicate and Dicalcium silicate

Q: Any potable water is suitable for making concrete. However, some nonpotable water may also be…

A: Portable water Portable water is defined as water that is suitable for human consumption i.e, water…

Q: + 8 O Shapes nik to Shape The constituent compound in Portland cement which reacts immediately with…

A: Here they ask for The compound of Portland cement which reacts immediately with water and also sets…

Q: Determine the modules of resilience of aluminum allow with yield strength of 40000 psi

A:

Q: Q-One of the most important factors that construction materials depend on for their moisture…

A: Given : The construction materials depend upon which factor for their moisture resistance

Q: Problem 1: Determine the flexural strength of a W 410 x 67 beam with a simple span of 8 m and Fy =…

A:

Q: I also need FBD in this solution

A:

Q: 9 - Which of the following is the most positive effect of C3A, one of the cement components. A) Fast…

A: Given data  C3A compound  This is one of the constituents of cement  Comes under the category of…

Q: Two of the prevention methods to reduce a. Using mild steel Using inhibitors b. C. Reduce the…

A: An

Q: Fill in the blanks with appropriate words a) Fibers are not ……………………… Therefore heat is only…

A: Given series of Fill in the blanks and asked to fill with appropriate words1. Fibres are not…

Q: A weight W= 120 kN is being supported by steel sections with force T, force F, and force C. The…

A: The weight supported by steel sections (W) = 120 kNPoint E is the origin (0,0,0)To determine:-The…

Q: In pressure grouting technique, the slurry contains * O PFA microsilica all of the mentioned O…

A: Grouting : Grouting is technique which is used to increase the strength of soil . In pressure…

Q: Which of the following cements is cement with at least 50% slag density and is suitable for use in…

A: The cement is a main substance in concreting which is used as a binding material and helps to…

Q: Reinforcing steel inside concrete is protected by the passive layer that forms due to the high pH…

A: Answer:- Mechanism: 1. Ingress of chlorides deicing chemicals: The corrosion of steel reinforcement…

Q: Which of the following statements is correct? A) Pozzolans react with Calcium Silicate Hydrate…

A: Pozzolans are silicate-based compounds that combine with the calcium hydroxide produced whenever…

Q: choose True OR false           Q1A- Secant modulus is given by the slope of a line drawn between two…

A:

Q: Which of the following directly causes sulfate attack in concrete? CH Delayed ettringite formation…

A: Sulfate attack in concrete is mainly caused by the reaction of sulfate ions with calcium hydroxide…

Q: 7. Load-bearing walls are supported by ( ). Sometimes they are corbeled out to accommodate columns…

A: Introduction : The roof, any wall directly above it, and floors, which can sometimes be constructed…

Q: 24 - Which of the following is the common effect of pozzolan on concrete. A) Decrease in hydration…

A: Given data:  Which of the following is the common effect of pozzolana on concrete.A) Decrease in…

Q: a). What is the minimum diamétér of à sölid 6m stéél shaft that will carry a shearing stress of not…

A:

Q: At saturated surface dry (SSD) an aggregate's moisture condition is equal to its: air dry…

A: When aggregate particles are completely having dry surfaces, this situation is called the saturated…

Q: The tricalcium aluminate compound present in cement

A: Tricalcium silicates is the bogus compound in the cement ( C3A )   Highest amount of heat is…

Q: (a) In general, which provides better fire performance, carbonate or silicate aggregates? Why? (b)…

A: (a). Carbonate aggregates provide much better fire resistance than the silicate aggregates because…

Q: Concrete is required for the construction of an agricultural dairy barn floor slab in Central…

A: A -2 class of exposure is structurally reinforced concrete exposed to moderate to severe manure with…

Q: Compressive strength developed with the age of hardening and decrease with the increase of water…

A:

Q: Water/cement ratio of concrete is the ratio of Volume of water to the volume of cement Volume of…

A: Introduction : The given question is related with building material . Water cement ratio is…

Q: Which of the following is correct for Low Heat Cement * Heat of hydration is reduced by tricalcium…

A: 1.Answer: Heat of hydration is reduced by tricalcium aluminate content.

Q: Reinforced concretes are usually attacked by water and rusted. This is due to, a. Low density…

A: Reinforced cement concrete is a type of concrete made with a combination of cement concrete and…

Q: research in which iron is used as a cementator

A: The process of solid heating with powdered synthetic materials is to change the properties of…

Q: of cement mortar,Sou

A: Tricalcium aluminate, C3A:- It liberates a lot of heat during the early stages of hydration, but…

Q: The moisture content in an aggregate sample represents the amount of moisture that must be present…

A: The moisture content in an aggregate sample represent the amount of the moisture that must be…

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.