Problem 4: Select the most suitable special cement/cements for the followingapplications:1. Concrete for making refractory lining (l üL) for furnaces?2. Concrete with higher ultimate strength and superior durability to sulfate attack?3. Concrete for crack free pavements and slabs?4. Concrete for fast track paving?5. Shotcrete (concrete conveyed through a hose and pneumatically projected athigh velocity onto a surface)?6. Concrete for emergency repair of leaking joints?7. Making shrinkage compensating concrete?8. Concrete for cold weather construction?9. Concrete for rapid form reuse?Problem 5: The table below shows the proportions of the major oxides resulted froma routine chemical analysis on two different types of cements.Percent by WeightOxideLime (CaO)Silica(SiO,)Alumina (Al,O,)Iron Oxide (Fe,O,)AB61652421.54.25.63.23.4Sulfur trioxide (SO,)2.22.6Magnesium oxide (MgO)Sodium oxide (Na,O)Potassium oxide (K,O)0.51.20.10.20.50.6Calcium oxide (free)0.50.51) Use Bogue's equations to estimate the compound composition of the twocements?2) Which one of the two cements is expected to have higher late-age strength?Why?3) Determine the types of cement A and B?4) Determine the sum of weight percentages for the iron and magnesium oxidesfor both cements? Comment on this result?

Answered: Image /qna-images/answer/8a4c57bc-0e53-426e-a3b5-618f989bb5e2.jpg

Problem 4: Select the most suitable special cement/cements for the following applications: 1. Concrete for making refractory lining ( ül) for furnaces? 2. Concrete with higher ultimate strength and superior durability to sulfate attack? 3. Concrete for crack free pavements and slabs? 4. Concrete for fast track paving? 5. Shotcrete (concrete conveyed through a hose and pneumatically projected at high velocity onto a surface)? 6. Concrete for emergency repair of leaking joints? 7. Making shrinkage compensating concrete? 8. Concrete for cold weather construction? 9. Concrete for rapid form reuse?

Problem 4: Select the most suitable special cement/cements for the following applications: 1. Concrete for making refractory lining ( ül) for furnaces? 2. Concrete with higher ultimate strength and superior durability to sulfate attack? 3. Concrete for crack free pavements and slabs? 4. Concrete for fast track paving? 5. Shotcrete (concrete conveyed through a hose and pneumatically projected at high velocity onto a surface)? 6. Concrete for emergency repair of leaking joints? 7. Making shrinkage compensating concrete? 8. Concrete for cold weather construction? 9. Concrete for rapid form reuse?

Structural Analysis

6th Edition

ISBN:9781337630931

Author:KASSIMALI, Aslam.

Publisher:KASSIMALI, Aslam.

Chapter2: Loads On Structures

Section: Chapter Questions

Problem 1P

See similar textbooks

Similar questions

One cubic yard of fresh concrete mix includes 1900 lbs coarse and 1150 lbs fine aggregates. Water-cement ratio (W/C) for the mix is 0.5. mix? Given information: Concrete weight = 150 pcf Weight of standard cement bags = 94 lbs Water weight = 8.34 pounds per gallon Approximately how many gallons of water should be added to each cubic yard of this 20 gallons 30 gallons 40 gallons 50 gallons
Do not answer in hand writing
%VV @ docs.google.com Chose The Correct Answer - ۱۰:۳۳ ص Methods that reduce the loss of mixing water from the surface of the concrete can be done by Ponding or immersion Saturated wet coverings Membrane-forming curing compounds All of these Workability of concrete increases by using * Flaky aggregate Rounded aggregate Angular aggregate All f these Pozzolanic materials: * Asiacell.. Decrease segregation of concrete
Designing a concrete that will be exposed to groundwater, the chemical analysis of which is given in Table 1. is requested. a) For 1 m3 of concrete, assuming the air gap is 1%, according to the relevant impact class specified in TS EN 206 Calculate the amount of material needed. (Maximum grain size of A1, A2, A3 aggregates to be used in the mixture) has a diameter of 16 mm and is in SDYK state, and the physical properties and mixing ratios of the aggregates are given in Table 2.) b) The ratio of cement kneading water to be used in production is 28%, volumetric shrinkage of cement paste Calculate the shrinkage that will occur in the concrete, assuming that the absolute volume of cement is 1%. from shrinkage Find the tensile stress that will occur in the concrete due to Whether cracks will occur in the concrete due to shrinkage, Considering the static elasticity modulus (secant modulus) of the concrete given below in the “stress-strain” diagram. take it and check it. Note: In the…
Q1: Give the reason for the following sentence? 1. The organic matter and alkalis (MgO, K0) are harmful ingredients in clay bricks? 2. The compressive fracture strength of Brittle materials is (10-15) times tensile fracture strength? 3. The durability of concrete will decrease when calcium hydroxide is contained? 4. Silica present in the combined form (aluminum silicate) does not form good bricks? 5. Drying is not needed when the dry press process is used?
The materials engineer made a design mix of the following masses of material that are required for 1 m³ of concrete. Material Batch mass, kg Cement 260 Fly ash SSD sand (absorption 1.5%) SSD coarse aggregate (absorption 1.0%) 1160 Mixing water 90 599 148 However, during construction, the available stockpiled sand has a total moisture content of 5.5% and the coarse aggregate has a total moisture content of 2.5%. Compute the adjusted sand (fine aggregate) mass in kg. Express your answer with 2 .decimal places.
Aggregate Homework --No. (2) Q1: A/ Explain the concrete failures and which type is the common for concrete in Iraq? B/ Define A.C.V and list Aggregate shape? C/What is the effect of chloride in aggregate? Q2: Example: compare this sample of fine aggregate with Iraqi and ASTM specification in grading. Sieve 9.5 4.75 2.36 1.18 0.6 0.3 0.15 Pan Size (mm) Returned 45 152 96 88 53 32 20 Weight (gm) Q3: Define the fallowing 1- Aggregate absorption 2- Angularity number 3- Mortar-bar Q4: why the use of larger aggregate size don't contribute to higher strength? Q5: For a sample of coarse aggregate the saturated surface dry weight (2000gm) its dry weight (1982 gm) and its immersed weight (1238 gm) find: -The apparent specific gravity. - The absorption Q6: what the determination of the max. aggregate size depend on ? Q7: give the relation between the fallowing 1- Surface roughness of aggregate and workability 2- Strength of concrete and surface roughness of aggregate Q8: compare between Rounded…
concrete is a strong and durable material that can be produced in many ways due to environmentally friendly ways. as good engineers, we should use environmentally friendly materials to replace a major part of cement for use in the concrete. in response to this issue, please recommend and explain the advantage of four material that can be used to design innovative concrete products for the construction industry
Please all options explains