Explain why increasing the water content produces a weaker concrete. What is heat of hydration.  What is heat of hydration.  What remedy to reduce the heat of hydration in a very large heat of hydration?

Q: a) What may happen to the concrete if you chose to sprinkle some water on it before it has had a…

A: Curing of concrete  has to be done after 24hr of  placing of concrete in its final position.…

Q: (b) Aggregate is one of the main materials used in the production of concrete and its physical…

A: Both the qualities of fresh concrete and those of hardened concrete may be significantly influenced…

Q: A. A mixture of 1700 g of gravel (SSD) with an absorption of 1.3% and 1300 g of sand (SSD) with a…

A:

Q: Q2) Calculate the volumes of the hydration products for 150 gm of cement with 0.5 w/c ratio, assume…

A: It is required to determine the absolute volume of dry cement. Vcah=Weight of dry cement is…

Q: Cement type III has a longer time of setting compared to cement type IV. True or False

A: This question is related to the Building material from Civil Engineering.

Q: For a concrete work of a dam to be located in Antalya (hot climate), materials selection will be…

A: Cement Chemical Composition is as follows: Property C1 C2 C3 %C3S 37 48 37 %C2S 43 32 53…

Q: Hydration of cement is exothermic process that generates heat. The table below shows the heat…

A: Option-a:This option implies that utilizing any of the specified cement components is unsuitable for…

Q: What are the possible conclusion in curing and making cement cubes and concrete cylinders? in…

A: In the context of curing and making cement cubes and concrete cylinders, there are several possible…

Q: (b) All basic chemical composition of Portland cement reacts with different rate of hydration. List…

A:

Q: As an engineer would you recommend the use of Fly ash instead of Portland cement, explain what…

A: Fly ash is an alternative for cement to reduce its use in the concrete mix. Cement manufacturing…

Q: e properties of five different pozzolans: Ground blast furnace slag, Silica Fume, Class F fly ash,…

A: Pozzolans, a large class of siliceous and aluminous minerals, are chemically reactive with calcium…

Q: Approximately 70% of concrete is made up from aggregates. Some stated that aggregates are only an…

A: b) Even in ideal conditions, the phrase inert indicates not reacting to anything else. As a result,…

Q: Hydration of cement is exothermic process that generates heat. The table below shows the heat…

A: When cement, water, compounds, and additives are mixed together, a significant increase in…

Q: a) Chemical deterioration. b) Physical deterioration c) all of them 9- Map cracking of concrete is…

A: Note :- as per guidelines only first three can be answered. Please repost remaining as separate…

Q: Differences between high alumina and quick setting cement as both of them have higher content of…

A: High Alumina Cement (HAC), sometimes known as calcium aluminate cement or aluminous cement, is…

Q: c. Using water reducer, how can we improve workability without changing the compressive strength?…

A: Given data,

Q: Mixing concrete is one of the major activities that goes on onsite. Descriminate hand mixing of…

A: Answer:- Onsite concrete mixing:- It is a process of producing concrete on the job site, so we can…

Q: Q8: Explain the zones of furnace of cement manufacturing process according to difference in…

A:

Q: The condenser for a heat pump system sits on this slab of concrete. Howmany cubic centimeters of…

A:

Q: For the following concrete mix design 1:0.51:1.29:3.6 (P:W:S:G), how much of each individual…

A: We will solve this question in step no. 2

Q: 3) For the beams and columns of a structure the followings are specified or determined. Design an…

A:

Q: However, during construction, the available stockpiled sand has a total moisture content of 5.5% and…

A: Adjusted mass of sand = 599 ( 1 + moisture content )                                      = 599 ( 1…

Q: H.W select a mix proportional of 28-day compressive strength (measured on standard cubes) of 56 MPa,…

A: Solution: Desing of concrete mix proportion: The mean strength fm = fmin + ks=56+(1.64x4)=62.4…

Q: Explain pozzolanic reaction with hydration products and its effects on hardened concrete properties.

A: When cement is mixed with water it reacts and its constituent compounds undergo a series of chemical…

Q: For the given amount of (weight of cement=120g, degree of hydration=100% and w/c ratio=D0.40), the…

A: Brief Concept- There is a requirement for a certain fixed volume of water for the cement paste. This…

Q: Calculate the maturity index of a concrete mixture of which datum temperature is -2.5 °C, when it is…

A: Datum temperature = -2.5 °C  Cured temperature = 23°C  at for 28 days.

Q: Calculate the volumes of the hydration products for 50 gm of cement vith 0.5 w e ratio assume there…

A: Specific gravity of cement =3.15,    density of cement =3.15 gm/cm3 Given data -   mass of cement…

Q: (c) Explain why concreting works in the rain is prohibited during construction. Give two (2)…

A: It is asked to explain why concreting works in the rain is prohibited during construction and also…

Q: Calculate the average density of brick. ?

A: Brick No. Length mm Width mm Depth mm Mass kg 1 213 98 70 2.52 2 212 98 70 2.5 3 211…

Q: The rate of evaporation of water from concrete mix as time thus loss of water leads to less…

A: We are authorized to answer one question at a time since you have not mentioned which question you…

Q: Explain pozzolanic reaction with hydration products and its effects on hardened concrete properties

A: Pozzolanic material are siliceous and aluminium material in which themselves posses little or no…

Q: A typical concrete mixture for sidewalks in Basra has a concrete compressive strength of 30 MPa. The…

A:

Q: How does the increase of maximum aggregate size used in the concrete mix design affect the…

A: We know for best results the gradation should be well graded. For well-graded aggregates, the voids…

Q: (a) Hydration process of cement has significantly influence in producing good quality of concrete.…

A: Solution: Hydration is defined as the process that is the result of an exothermic reaction when…

Q: Incorporating fly ash helps to improve the sulfate corrosion resistance of the concrete. Why?

A: Incorporating fly ash helps to improve the sulfate corrosion resistance of the concrete. Answer:-…

Q: For various cement and concrete compositions, indicate the relative difference between the following…

A: To determine: The relative difference between given physical and chemical properites.

Q: Fill in the blank. Chemical admixtures for concrete are organic or inorganic materials other than…

A: The answer is below:

Hydrogen Energy

Energy is a quantity that cannot be defined, its existence can only be felt. In simple language, if a system possesses energy, it can do a specific kind of work. There are many forms of energy sources which people can use to obtain work. Solar energy, tidal energy, hydroelectric energy, geothermal energy, wind energy are some of the renewable energy sources which are primarily used for the production of electricity.