Structural Analysis
6th Edition
ISBN: 9781337630931
Author: KASSIMALI, Aslam.
Publisher: Cengage,
expand_more
expand_more
format_list_bulleted
Related questions
Concept explainers
Question
In the solution with the same concentration, strength loss of the hardened cement paste soaked in magnesium sulfate solution was less than that in sodium sulfate solution.
why?
Transcribed Image Text:Summary of compressive strength evolution in sulphate environment (%)
MGSO4
solution (%)
NazSO,+M9SO4
solution (%)
Sample ID
NazSO4
solution (%)
ОРС
-30
-21
-35
OPC+FA
-14
-4.8
-19
Expert Solution
This question has been solved!
Explore an expertly crafted, step-by-step solution for a thorough understanding of key concepts.
Step by stepSolved in 2 steps
Knowledge Booster
Learn more about
Need a deep-dive on the concept behind this application? Look no further. Learn more about this topic, civil-engineering and related others by exploring similar questions and additional content below.Similar questions
- The raw materials used in Portland Cement production are: A) Calcium/Coal/Alumina/Silica B) Alumina/Sandstone/Iron/Coal C) Calcium/Iron/Sandstone/Silica D) Alumina/Silica/Iron/Calciumarrow_forwardAlthough the constituents of concrete (aggregate and hydrated cement paste) behave in a linear elastic manner if stress is applied to them and the resulting strain is measured, concrete is not a linear elastic material throughout its entire stress-strain curve. What is the main reason for the deviation from this behavior? Interfacial transition zone (ITZ) Incomplete hydration of cementitious phases The loading rate applied according to ASTM C 39 presence of C-S-H very close to the aggregate/paste interfacearrow_forwardWhich of the following statements is correct? A) Pozzolans react with Calcium Silicate Hydrate (C-S-H) to form Calcium Hydroxide (C-H) B) Pozzolans react with the by-product of cement hydration to produce a denser concrete C) Use of pozzolans in a mix generally improves the durability and strength of the concrete D) b and carrow_forward
- This refers to a change from liquid state to solid state of cement paste.arrow_forwardMost cement slurries will contain some additives to modify the properties of the slurry to produce a better cement job to suit particular requirements. Fluid loss additive helps to maintain constant water to solid ratio in cement slurry. Which of the following is advantage of fluid loss additive? a. Increase free water of cement slurries b. Maximize formation damage c. Changes in slurry rheology is seen d. Prevent stuck pipearrow_forwardDesign a concrete mix for the following performances and ingredients:• Compressive strength at 28 days = 35MPa, slump 85 mm• Crushed coarse aggregate of size 14 mm readily available• Fine aggregate is washed coarse sand, fineness modulus = 2.5• Specific gravity of combined aggregate =2.6• Water absorption of fine aggregate = 5%• Water absorption of coarse aggregate = 3%• Air-dry moisture content of coarse aggregate = 6%• Air-dry moisture content of fine aggregate = 2%arrow_forward
- The quality of aggregate packing affects: a) Cement use b) Slump c) Corrosion d) Early crackingarrow_forwardThe strength of concrete primarily depends on the:Type of aggregatesWater-cement ratioCuring timeMixing methodarrow_forwardWhich of the following material is/are used as an accelerator’s additive for cement? a. Sodium Chloride b. Caustic Soda c. Calcium Chloride d. Nitrogen e. Barite f. Bentonite g. Gypsumarrow_forward
- Both weathered chert and sound quartz pieces are common constituents in stream gravels. Both have the chemical formula SiO2. Yet the weathered chert is an unsound material in concrete when subjected to freezing and thawing cycles, whereas quartz does not have this problem. Explain why this is the case.arrow_forwardwhich is considered organic cement from the followings? * all of the mentioned Portland cement lime clay natural resins which is used to mitigate the sulphate problem in lime stabilisation * decrease the mellowing time increase water content all of the mentioned increase the compaction apply all lime required in one shotarrow_forwardHardening of concrete is caused by "Hydration" True Falsearrow_forward
arrow_back_ios
SEE MORE QUESTIONS
arrow_forward_ios
Recommended textbooks for you
Structural Analysis (10th Edition)Civil EngineeringISBN:9780134610672Author:Russell C. HibbelerPublisher:PEARSON
Principles of Foundation Engineering (MindTap Cou...Civil EngineeringISBN:9781337705028Author:Braja M. Das, Nagaratnam SivakuganPublisher:Cengage Learning
Fundamentals of Structural AnalysisCivil EngineeringISBN:9780073398006Author:Kenneth M. Leet Emeritus, Chia-Ming Uang, Joel LanningPublisher:McGraw-Hill Education
Traffic and Highway EngineeringCivil EngineeringISBN:9781305156241Author:Garber, Nicholas J.Publisher:Cengage Learning
Structural Analysis (10th Edition)
Civil Engineering
ISBN:9780134610672
Author:Russell C. Hibbeler
Publisher:PEARSON
Principles of Foundation Engineering (MindTap Cou...
Civil Engineering
ISBN:9781337705028
Author:Braja M. Das, Nagaratnam Sivakugan
Publisher:Cengage Learning
Fundamentals of Structural Analysis
Civil Engineering
ISBN:9780073398006
Author:Kenneth M. Leet Emeritus, Chia-Ming Uang, Joel Lanning
Publisher:McGraw-Hill Education
Traffic and Highway Engineering
Civil Engineering
ISBN:9781305156241
Author:Garber, Nicholas J.
Publisher:Cengage Learning