Classify the following soil by USCS classification system by giving the group symbol and the group name. % finer than No. 4: 71 % finer than No. 200: 11 LL: 32 PL: 16 Cu: 4.8 Cc: 2.9 Group Symbol is and the Group Name is

Classify the following soil by USCS classification system by giving the group symbol and the group name. % finer than No. 4: 71 % finer than No. 200: 11 LL: 32 PL: 16 Cu: 4.8 Cc: 2.9 Group Symbol is and the Group Name is

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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• AASHTO SOL CASSFICATION (by AASHTO) AASHTO = Amgrican Association of Sate Highway and Transport Officials Situation 2 Clnsification of Highway Subgrade Materias SIEVE % FINER General clamification Gralar ateriels SOIL A SOIL B SOIL C (2 or lean of tatal sample panaing Na. 200) A-1 90 76 10 83 100 Procedture: 40 48 92 Greup classification A1- A24 A2-7 O Group Clasfcotion • with required tit doto in mind, proceed from left to roht inchart. The correct aroup will be found by prooess of e lminotion. The first group from the let consstenc with the tost dota is the conect clasaficonon. 86 34 Sieve analysis (pescemtage passing) Na. 10 200 20 LL 20 70 37 50 ma 30 ma 15 max. PI 5 32 18 No. 200 50 m 51 min. 25 m. 10 man. 35 mon 35 man. 35 man. Using AASHTO method: 1. Determine the group symbol and index for soil A. 2. Determine the group symbol and index for soil B. 3. Determine the group symbol and index for soil C. Characteristies of fraction passing No. 40 Ligaid linit Platicity inden Usual…
(c) Asphalt concrete mixture of AC 14 will be used to construct the wearing course layer. The coarse aggregate, fine aggregate and filler are used as materials to produce the asphalt concrete mixture. The aggregate gradation will be blended to fulfill the gradation limit according to JKR standard specification as shown in Table Q1(c)(i). Based on this statement, conclude the result of sieve analysis test of blended aggregate as shown in Table Q1(c)(ii). I Table Q1(c)(i): Gradation specification for AC 14 mixture BS Sieve Size (mm) Percentage passing by weight 28.0 20.0 14.0 10.0 5.0 3.35 1.18 0.425 0.150 0.075 100 90-100 76-86 50-62 40-54 18-34 12-24 6-14 4-8 I Act Go to
We need to solve them all. Just the right choice
Given the following information from an asphalt mix: Gsb = 2.705 Gmm = 2.534 Gmb = 2.432 Gb = 1.014 Pb = 5.7% Unit weight of water = 62.4 Ib/ft3 Assume 1 ft for total volume. Draw mass/volume relationship and determine Mass of Mix (Mm) Ib., Mass of Binder (Mb) Ib., Volume of Binder (Vb) pcf, Volume of Void-less Mix (Vmm) Volume of Air (Va) pcf, Volume of Absorbed Asphalt (Vba) pcf, Volume of Effective Asphalt (Vbe) pcf. In addition, calculate Air Voids (VA) %, Voids in Mineral Aggregate (VMA) %, and Voids Filled with Asphalt (VFA)
Discuss the significance of the determination of Grain size analysis and water content. (10)
Q#.01: Find optimum moisture content from the following data. (CLO2, PLO2) Weight of Mould=1970 grams Volume of Mould-0.0333 cft Moisture Determination Approx. % of Wt. of Wet wt. Wet Wet wt. of Dry wt. Wt. of Percent Sample and Dry Moisture Density (Ib/cft) of Density moisture of Water water Sample (Ib/cft) Sample Moisture added Mould Sample 11 3884 354.6 318.9 13 3955 320.1 283.8 15 3995 410.6 356.7 17 3986 344.6 293.8
Define the following terms: (don’t just provide the equation, explain what the equationrepresents). a). Saturated Surface-Dry condition of aggregate b). Absorption of aggregates c). Free moisture of aggregates. d). What does a negative free moisture mean and why is it important to consider forconcrete design?
Determined and fil-up the unknown data of the given table. Physical Properties Mix Design Specific Dry-rodded Materials Fineness Estimated Absolute gravity weight ft3 Absorption modulus Ib/yd3 Ib/yd3 (SSD) Ib/ft3 Cement 3.15 ? ? Sand 2.64 0.7 2.72 11/2 62.4 Ib/ft Gravel 2.67 0.5 100.5 Water ? Vol. of entrapped air w/C = ? GIVEN: Specification Requirements compressive strength, psi 4000 Slump, in. 3 4
Table shows the grain size distribution for two aggregates and the specification limits for an asphalt concrete. Determine the blend proportion requiredto meet the specification and the gradations of the blend. On a semilog gradation graph, plot the gradations of aggregate A, aggregate B, the selected blend,and the specification limits.c
Us Standard Sieve No. Sieve Opening (mm) Weight Retained (g) % Retained on Sieve % Passing Sieve 4 4.75 12.7 6.2 93.8 10 2 24.8 12.1 81.7 20 0.85 21.5 10.48 71.24 40 0.425 38.8 18.92 52.33 60 0.25 23.8 11.60 40.73 100 0.15 19.5 9.51 31.23 200 0.074 46.7 22.76 7.463 Minus 200 17.3 8.44 0 Total 205.1 for D10 and D60 calculate the k value utalizing Hazen's approxoimation. c=100
determine the effective specific gravity of aggregates. DATA: Specific Gravity: Fine Agg = 2.603 Coarse Agg = 2.740 Asphalt Cement = 1.048 Percent By Weight: Fine Agg = 47.90 Coarse Agg= 47.78 Asphalt Cement= 100-FA-CA
7. Make a spread sheet blend template program to perform a blend gradation analysis for up to four stockpiles with the ability to produce automatically semilog or power 0.45 gradation charts. Use the table to demonstrate the template, and calculate the fineness modulus for the aggregate D. Aggregate Blend Percent (%) Sieve size (mm) 37.5 25 19 12.5 9.5 4.75 2.36 1.18 0.60 0.30 0.15 0.075 A 20 100 100 95 89 70 10 2 N|N 2 2 2 2 2 B 25 100 100 100 100 82 55 15 55 32 2 1 с 25 Percent Passing 100 100 100 100 100 100 69 55 35 22 15 6 D 30 100 100 100 100 100 100 86 54 34 25 14 5