I need the answer quickly What is the moisture content in slurry fordry process10-12%35-45%12-25%30-55%False set occurs in a cement when *High gypsum and high aluminate contentLow gypsum and low aluminate contentLow aluminate content and high gypsumHigh gypsum and low aluminate content

The moisture content for dry process is 10-12%. The moisture content for wet process is 35-45%.…

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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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Design a concrete mix according to the following conditions: Design Specifications Concrete ramp (not reinforced) Slab thickness =270 mm Design strength (fc) = 25.5 MPa Standard deviation s= 1.86 MPa on 200 specimens Environment = Severe exposure to freeze-thaw and de-icing chemicals Slump = 50 mm Materials Available Cement: Type GU; specific gravity 3.15 Admixture: Air entraining admixture 8 ml/1% air/100 kg cement . Coarse Aggregate: Nominal maximum size = 37.5 mm Type = Crushed stone Bulk oven-dry specific gravity = 2.63 Absorption = 2.1% Oven-dry rodded density = 1755 kg/m3 Moisture content = 1.5% Fine Aggregate Type = Natural sand Bulk oven-dry specific gravity = 2.55 Absorption = 3.1% Moisture content = 4.3% Fineness modulus = 2.40
Compute for the corrected amount of water needed in the concrete mix if the mass of fine and coarse aggregates are 650 kg and 780 kg, and both have an absorption of 1.5% and 2% respectively. Water/cement ratio is 0.50 and the mass of cement is 260kg.
In the normal consistency of paste cement, If I get 30 percent normal consistency, what does it imply? What is result of the concrete if I use this product. explain explicitly
For a concrete mix having a water-cement ratio of 0.48, water content of 190 kg/m3, and the ratio of coarse to fine aggregate is 59% : 41%. Show the porportions of that mix by weight using absolute volume method. Using BSI Method Only
13 - What is the type of cement with Blaine fineness around 7000-9000 cm2 / g?A) Aluminous cementB) Sulphate resistant cementC) Portland cementD) Ultra early strength cementE) White cement
compute for the corrected amount of water needed in the concrete mix if the mass and fine coarse aggregates are 740 kg and 1100 kg, and both have a natural moisture content of 2% and 1.5% respectively. water/cement ratio is 0.5 and the mass of ratio of concrete is 1:2:3
Check whether the lime content for this type of cement is within acceptable limits if you know that the oxides are in the proportions Are as follows Calcium Oxide = 62% = Aluminum trioxide = 4% Sulfur trioxide = 2% Silicon dioxide = 18% Iron trioxide = 4%
Mabuhay Pozzolan Cement . unexposed and exposed in the weather . make a remarks either Good or bad condition of a cement .
Design the concrete mix according to the following conditions:Design Environment• Building beamo Required design strength = 27.6 MPao Minimum dimension = 150 mmo Minimum space between rebar = 40 mmo Minimum cover over rebar = 40 mmo Statistical data indicate a standard deviation of compressive strengthof 2.1 MPa is expected (more than 30 samples).• Only air entrainer is allowed.• Moderate Sulphate exposure.• Available Materialso Air entrainer:▪ Manufacture specification 6.3 mL/1% air/100 kg cement.o Coarse aggregate:▪ 19 mm nominal maximum size▪ River gravel (rounded)▪ Bulk oven-dry specific gravity = 2.55▪ Absorption = 3.6▪ Oven-dry rodded density = 1761 kg/m3▪ Moisture content = 2.5o Fine aggregate:▪ Natural sand▪ Bulk oven-dry specific gravity = 2.659▪ Absorption = 0.5▪ Moisture content = 2▪ Fineness modulus = 2.47o Cement▪ Type II (Moderate Sulphate Resistant)▪ Specific Gravity = 3.15Based on this information, find the following and summarize the findings in a table d) The amount…
Design the concrete mix according to the following conditions:Design Environment• Building beamo Required design strength = 27.6 MPao Minimum dimension = 150 mmo Minimum space between rebar = 40 mmo Minimum cover over rebar = 40 mmo Statistical data indicate a standard deviation of compressive strengthof 2.1 MPa is expected (more than 30 samples).• Only air entrainer is allowed.• Moderate Sulphate exposure.• Available Materialso Air entrainer:▪ Manufacture specification 6.3 mL/1% air/100 kg cement.o Coarse aggregate:▪ 19 mm nominal maximum size▪ River gravel (rounded)▪ Bulk oven-dry specific gravity = 2.55▪ Absorption = 3.6▪ Oven-dry rodded density = 1761 kg/m3▪ Moisture content = 2.5o Fine aggregate:▪ Natural sand▪ Bulk oven-dry specific gravity = 2.659▪ Absorption = 0.5▪ Moisture content = 2▪ Fineness modulus = 2.47o Cement▪ Type II (Moderate Sulphate Resistant)▪ Specific Gravity = 3.15Based on this information, find the following and summarize the findings in a table.a) Required…
In determining consistency of cement, the completion of mixing and placing the paste in Vicat mould should not exceed 5 minutes and not less than ___________ minutes.
Design the concrete mix according to the following conditions: Design environment Tennis court, subjected to freezing Required design strength =21 MPa Slab thickness=300 mm Statistical data indicate a standard deviation of compressive strength of 3.7 MPa is expected (for 50 samples) Only air entrainer is allowed Available materials: Air=7% Air entertainer: Manufacturer specification is 9.0 ML /1% air/100kg cement Slump=50 mm Coarse aggregate: 50 mm nominal maximum size, crushed stone Bulk volume oven-dry specific gravity=2.61, absorption=2.8%, oven-dry rodded density=1870 kg/m3 Moisture content=1% Fine aggregate: Natural sand Bulk oven-dry specific gravity=2.54, absorption=3.4% Moisture content= 4.5% Fineness modulus=2.60 Cement: Type I, relative density=3.1

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