ZVV @Pozzolanic materials: *Decrease segregation of concretedocs.google.comBoth of theseIncrease compressive strength of concreteBeams۱۰:۳۳ صCuring f concrete with ponding andimmersion is suitable forColumnsSlabsNone of theseReady mix concrete usingWight batching methodBoth of these*Volume batching methodAsiacell.

To give the following answer, a) Pozzolanic material is used for b) Pouring with ponding is…

Pozzolanic materials: Decrease segregation of concrete Increase compressive strength of concrete Both of these Curing f concrete with ponding and immersion is suitable for Beams Columns Slabs O None of these Ready mix concrete using Wight batching method * Volume batching method Both of these

Pozzolanic materials: Decrease segregation of concrete Increase compressive strength of concrete Both of these Curing f concrete with ponding and immersion is suitable for Beams Columns Slabs O None of these Ready mix concrete using Wight batching method * Volume batching method Both of these

Fundamentals Of Construction Estimating

4th Edition

ISBN:9781337399395

Author:Pratt, David J.

Publisher:Pratt, David J.

Chapter11: Pricing Concrete Work

Section: Chapter Questions

Problem 4RQ

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As a materials engineer in charge of designing concrete mix and facing the fol-lowing problems, which admixture would you use in each case during mixing or at the jobsite?a. There is a large quantity of freshly mixed concrete and the work at thejobsite had to stop because of rain.b. More time is expected to be needed for finishing concrete.c. The structure is subject to freezing.d. Concrete is to be around tightly spaced reinforcing steel.e. Concrete mix will be hauled a long distance.f. High early strength concrete is required, but not necessarily high ultimatestrength.
As a materials engineer in charge of designing concrete mix and facing the followingproblems, which admixture would you use in each case during mixing or at thejobsite?a. There is a large quantity of freshly mixed concrete and the work at the job-sitehad to stop because of rain.b. More time is expected to be needed for finishing concrete.c. The structure is subjected to freezingd. Concrete is to be around tightly spaced reinforcing steel.e. Concrete mix will be hauled a long distance.f. High early strength concrete is required, but not necessarily high ultimatestrength.
UUURRRGGGEEENNNTTT PLEASE You are working on a concrete mix design that requires each cubic yard of concrete to have a 0.43 water–cement ratio, 2077 lb/yd3 of dry gravel 244 lb/yd3 of water, and 4% air content. The available gravel has a specific gravity of Ggravel = 2.6, moisture content of 2.3% and absorption of 4.5%. The available sand has a specific gravity of Gsand = 2.4, a moisture content of 2.2% and absorption of 1.7%. Air entrainer is to be included using the manufacturers specification of 0.1 fl. oz / 1% air / 100 lb cement. For each cubic yard of concrete needed on the job, calculate the weight of cement, moist gravel, moist sand, and water that should be added to the batch. Summarize and total the mix design when finished.
You are working on a concrete mix design that requires each cubic yard of concrete to have 0.45 water–cement ratio, 1963 lb/yd3 of dry gravel, 4% air content, and 565 lb/yd3of cement. The available gravel has a specific gravity of Ggravel = 2.7, a moisture content of 1.6%, and absorption of 2.4%. The available sand has a specific gravity of Gsand = 2.5, a moisture content of4.8%, and absorption of 1.5%. For each cubic yard of concrete needed on the job, calculate the weights of cement, moist gravel, moist sand, and water that should be added to the batch. Summarize and total the mix design when finished (don’t include air entrainer in summary).
The design of a concrete mix requires 1173 kg/m3of gravel in dry condition,582 kg/m3of sand in dry condition, and 157 kg/m3of free water. The gravelavailable at the job site has a moisture content of 0.8% and absorption of1.5%, and the available sand has a moisture content of 1.1% and absorptionof 1.3%. What are the masses of gravel, sand, and water per cubic meter thatshould be used at the job site?
You are working on a concrete mix design that requires each cubic yard ofconcrete to have 0.45 water–cement ratio, 1165 kg/m3of dry gravel, 4% aircontent, and 335 kg/m3of cement. The available gravel has a specific gravity of Ggravel = 2.7, a moisture content of 1.6%, and absorption of 2.4%. The available sand has a specific gravity of Gsand = 2.5, a moisture content of 4.8%, and absorption of 1.5%. For each cubic meter of concrete needed on the job, calculate the mass of cement, moist gravel, moist sand, and water that should be added to the batch. Summarize and total the mix design when finished (don’t include air entrainer in summary).
what is the aci design mix or proportioning of standard compressive ddesign strength values (without ad mixture or other supplementaries) of cement, water, ad aggregates and fine aggregates ratio for 3000 psi, 4000 psi and 5000 psi. please help me and if you searched for it pls inlcude the links here i want to read it
(a) The following data are collected for a modulus ofrupture test on a refractory brick (refer to Equation6.10 and Figure 6,14):F= 5.0 x 10 N.L= 200 mm,h= 130 mm.h= 80 mm.Calculate the modulus of rUpture: (b) suppose thatyou are given a similar rolracioty with the fallSpensin and same dimensions except that its heightSit ts only 60 mm. What would be the load (F) necesary to break this thinner refractory?
You are working on a concrete mix design that requires each cubic yard ofconcrete to have 0.45 water–cement ratio, 1165 kg/m3 of dry gravel, 4% air content, and 335 kg/m3 of cement. The available gravel has a specific grav-ity of Ggravel = 2.7, a moisture content of 1.6%, and absorption of 2.4%. The available sand has a specific gravity of Gsand = 2.5, a moisture content of4.8%, and absorption of 1.5%. For each cubic meter of concrete needed onthe job, calculate the mass of cement, moist gravel, moist sand, and waterthat should be added to the batch. Summarize and total the mix design whenfinished (don’t include air entrainer in summary).
a) What is pozzolanic material; what benefits can be achieved by using Pozzolana with cement in concrete? b) For what purpose we use Ultrasonic Pulse velocity test? Also classify the quality of concrete if Ultrasonic Pulse velocity is 3.0km/sec? SIR, PLS GIVE ME PROPER AND CORRECT ANSWER WITH FULL DETAILS. THANKS SUBJECT: CONCRETE TECHNOLOGY
Yo mm Ve 6 Je e Salll ZAINIQ ; - 25l bt sese Homework blas . aall b g wslo] ) Design a concrete mix according to ACI 211 for construct reinforced columns, exposed to freezing and thawing, the compressive design strength is (25 MPa), the standard deviation equal to (6), and (8%) test results expected below minimum strength. The maximum size of aggregate is (19mm), and its bulk density is (1500 Kg/m3), and its fineness modulus is (2.7). An Air entraining agent is used. Find the quantities of materials required to mix with 50 Kg of cement. podl eluctll sc30 cllac
Estimate the approximate quantity of Cement, Fine aggregate, Coarse aggregate and Water, for five (5) Concrete Cylinders. If one finalized the ratio from ACI-211 Mix design for specified strength as (1:1.3:2) and W/C of 0.48. (Assume the given ratio is by weight)