Question 7 Listen Moisture content specimens should be discarded after testing and not used in any other tests due to particle breakdown, chemical changes or losses, melting, or losses of organic constituencies. True False Question 8 ◄) Listen It is important that disturbed samples are stored in jars or containers without a lid so that it can be exposed to outside moisture and condensation. True False Question 9 p Listen By definition, moisture content of soil is (select all that apply): The ratio of the mass of water in a sample to the mass of solids in the sample. The ratio of the mass of water in a sample to the total mass of moist soil. Expressed as a percentage

Question 7 Listen Moisture content specimens should be discarded after testing and not used in any other tests due to particle breakdown, chemical changes or losses, melting, or losses of organic constituencies. True False Question 8 ◄) Listen It is important that disturbed samples are stored in jars or containers without a lid so that it can be exposed to outside moisture and condensation. True False Question 9 p Listen By definition, moisture content of soil is (select all that apply): The ratio of the mass of water in a sample to the mass of solids in the sample. The ratio of the mass of water in a sample to the total mass of moist soil. Expressed as a percentage

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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Express the answers in the nearest three decimal numbers. NOTE: Refer to MM = 08 and DD = 26
Calculation: Mmoist - Maryx 100% MC = : Mary Where: MC = moisture content in percent Mmoist = mass of original specimen Måry = mass of oven dry specimen Tabulated Data and Result Sample No. Mmoist (kg) Mdry (kg) MC 1 0.5 0.25 0.4 0.18 3 0.5 0.22 4 0.3 0.13
Find the optimum binder content for the results of Marshall test bellow and determine the properties of the optimum mix: Ac% Density (gm/cm³) %V.T.M %V.M.A Stability (N) Flow (mm) 4.5 2.222 6.0 13.5 8150 2.0 4.75 2.282 5.5 14 8350 2.4 5.0 2.345 4.0 14.5 8500 2.8 5.25 2.332 3.8 15 7900 3.0 5.5 2.293 3.5 16 7000 4.5 Specifications 3---5 12---16 Min. 8000 2---4
Chose the correct answer 1- The Unit measurement of suspended solids is ...A- kg 2- The Unit measurement of Turbidity is A- °C is B-m B-NTU C- mg/L C-K 3- The Unit measurement of pH www A-mg/L 4- The Unit measurement of alkalinity is .. 5-Non toxic metals includes 6-Dissolved materials size is lees than A- 10 mm D- none of above D- none of above D- none of above B- p.p.m C- g/m³ D- none of above A- m/sec B- m³/sec C- mg/L A-Chromium B- Mercury C- Calcium D- none of above B- 106, C-108 mm D- none of above mm 7- Public standards of Hardness in drinking water is A-500 mg/L B-50 mg/L C-100 mg/L D- none of above 8- Alkalinity species includes are A-HCO3 B-CO3 C- OH D-All of above ... 9- Dental cavities in children can prevented when Drinking water has Fluoride concentration of A- 0.1 mg/L B- 1 mg/L C- 10 mg/L D- none of above 10- Toxic metals are metals that harmful to humans even when exists in concentration of .. A- Small B-Large C-zero D- none of above
2) Two aggregates (Al and A2) were obtained from the field. They were brought to the oven dry condition (OD) and weighed. Data for each of the aggregates is presented in the table below. (Density of water=lg/cm³) Table 1. Absorption capacity and moisture content data. A1 A2 600 g 600 g Field Weight Oven Dry Weight Absorption Capacity (%) | 0.6 % 595.3 g 598.3 g 0.7 % a) Describe the field moisture state of each aggregate, Al and A2 (i.e. wet, SSD, or air dry). For each sample would you add water or dry the sample to bring it to SSD state? Determine the expected mass of each sample in the SSD state. b) If the bulk volume Al oven dry is 220 cm³ and the bulk volume of A2 oven dry is 250 cm³, determine the bulk oven dry specific gravity for each aggregate, Al and A2.
In a laboratory we are doing a series of tests on a sample of aggregate. This sample has the wet weight of 586.3 gr and dry weight of 513.9 gr. If the absorption of this aggregate is measured as 2.23%. Calculate the percent of free water in the original wet sample.
A water sample was examined and following observations were made: Species Concentration(milliequivalent) Calcium, Ca2 10 Magnesium, Mg2 Chloride, Cl 4 Sulphate, SO,- 11 Use above data, and choose the correct statement(s). Permanent hardness is caused by NO3 , S042, ions. Correct Option B Carbonate hardness of sample is 150 mg/l as Caco3 Your answer is IN-CORRECT Special method such as base-exchange process can be used to remove permanent hardness. Your option is Correct D Non-carbonate hardness in a 200 ml sample of given water is 150 mg as CaCo3- Correct Option
Discuss the significance of the determination of Grain size analysis and water content. (10)
Answer 5.8
A saturated aggregate sample with an absolute volume of 5.05x10^-5 m^3 has a mass of 178 g before drying and 139 g after drying in an oven. Assume the water absorption by volume to be 59.18%. Determine the following: a. Specific gravity of the solid particles b. Mass specific gravity c. Void Ratio d. Porosity
4. Lime and soda process is to be designed for the water analysis presented below, The quantity of water to be treated is 12 MGD. Estimate the total hardness, carbonate hardness and non-carbonate hardness. Determine the amount of lime and soda to soften the water to a final hardness of 95 moA as CaCO, Estimate the annual cost of softening if the cost of dry lime (CaO) is a dime per kilogram and cost of soda ash (Na-CO,) is 20 cents per kilogram (assume both compounds to be 90% pure). (AW: Ca-40, Mg-24.3, Na-23, C-12,0-16) acl Constituent mgl mg/las C&CO, Ca 12 Alkalinity CO2 150 Show transcribed image text
2) Two aggregates (Al and A2) were obtained from the field. They were brought to the oven dry condition (OD) and weighed. Data for each of the aggregates is presented in the table below. (Density of water=1g/cm') Table 1. Absorption capacity and moisture content data. A1 A2 Field Weight 600 g 600 g 598.3 g Oven Dry Weight Absorption Capacity (%) 0.6 % 595.3 g 0.7% a) Describe the field moisture state of each aggregate, Al and A2 (i.e. wet, SSD, or air dry). For each sample would you add water or dry the sample to bring it to SSD state? Determine the expected mass of each sample in the SSD state. b) If the bulk volume Al oven dry is 220 cm and the bulk volume of A2 oven dry is 250 cm2, determine the bulk oven dry specific gravity for each aggregate, Al and A2. MONSTER E12 PRT SC PAUSE う