Calculate the 3-day and 1-year hydration heat values for the cement types given below. Comment the strength development for both cement types. Explain with the reasons. Cement Ai Co O: 63% , SiO2: 23%, Al2 O3: %7, Fe,Og: 4%, MgO:0.6S03: 0,8, Other: 1,6Cement B: Cao: 58%, SiO2 : 25%, Al,03:%.11, fe,0g:3"/, MgO:0.6,S03: 0.8, Other,,6hydration heat - 3day (J/9)- 240XCGS+50x CS+880XC3A+290×C,AFhydration heat- 1year (Jlg):490x C35+ 225x CS+ !160x CA+ 375X4AF

Given:- Two different types of cement are given Cement A:- CaO = 63% , SiO2 = 23% , Al2O3 = 7% ,…

Answered: Calculate the 3-day and 1-year…

Calculate the 3-day and 1-year hydration heat values for the cement types given below. Comment the strength development for both cement types. Explain with the reasons.

Structural Analysis

6th Edition

ISBN:9781337630931

Author:KASSIMALI, Aslam.

Publisher:KASSIMALI, Aslam.

Chapter2: Loads On Structures

Section: Chapter Questions

Problem 1P

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Concept explainers

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.

Question

Calculate the 3-day and 1-year hydration heat values for the cement types given below. Comment the strength development for both cement types. Explain with the reasons.

Cement Ai Co O: 63% , SiO2: 23%, Al2 O3: %7, Fe,Og: 4%, MgO:0.6
S03: 0,8, Other: 1,6
Cement B: Cao: 58%, SiO2 : 25%, Al,03:%.11, fe,0g:3"/, MgO:0.6,
S03: 0.8, Other,,6
hydration heat - 3day (J/9)- 240XCGS+50x CS+880XC3A+290×C,AF
hydration heat- 1year (Jlg):490x C35+ 225x CS+ !160x CA+ 375X4AF

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For 100g cement with w/c=0.5 and the volume of the capillary pores (Vcp) equal to 40 ml, the degree of hydration (h%) is equal to: (note: Vcp= Vec+Vcw)