Coursework 1: Aggregate testing This report was an investigation into different standard testing methods used for aggregates; Sieve Analysis‚ Moisture Content Determination and Determination of Voids Content and Density. The experiments precisely verified that the aggregates complied with British Standards. Contents page Test 1: Sieve Analysis “Large” coarse aggregate “Small” coarse aggregate Fine aggregates Observation Test 2: Moisture Content “Small” coarse aggregate Fine
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soil for the construction of roads‚ airports‚ etc. Information obtained from grain size analysis can also be used to predict in a general way how a soil is expected to behave with respect to shear strength‚ settlement and permeability. 4.1.4 Principle of grain size determination Soil consists of an assembly of soil particles (discrete particles) of various shapes and sizes. The object of a particle size analysis is to group these particles into separate ranges of sizes and so determine the relative
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proportion of the mixture is far out of the requirements. We may need to change the blend gradation of aggregate. The blend in this mix design produced a gradation‚ as shown in Figure 1‚ that was close to the maximum criteria for the 2.36mm sieve and the 0.075mm sieve and passed above the restricted zone‚ so this blend was probably a fine blend. Therefore‚ the dust proportion of mixture was so high that it was far out of the requirements. We may need to change the cold feed so that a new gradation will
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Sieve Analysis Lab Report Tech Writing Lab Report Dr. Clinton Lanier Written by: Jon Leyba Date Assigned: 10/17/2011 Date Due: 10/24/2011 Introduction: The purpose of his lab is to perform a sieve analysis on a sample of soil collected near the EMRTC facility behind the New Mexico Tech Campus. The soil sample has reddish fines‚ sand‚ and gravel. The grain size distribution (GSD) test is used for soil classification‚ under the Unified Soil Classification System (USCS). The USCS is
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Laboratory 1 Grain Size Distribution – Sieve Analysis Introduction The grain size distribution is a representation of the approximate distribution of soil grain sizes for a soil. The sieve analysis‚ also called mechanical method‚ measures the dry mass of soil retained on each sieve in a stack of sieves‚ where the sieve opening sizes vary from the largest to smallest going from the top to the bottom of the stack. All the soil particles retained on a particular sieve will have an ‘intermediate size’ or
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Balance‚ sensitive to within 0.1% of the weight of the sample to be tested Standard sieves for grading of fine aggregates- 4.75 mm‚ 2.36 mm‚ 1.18 mm‚ 300m‚ 150m (# 4‚ 8‚ 16‚ 50 and 100) Standard sieves for grading coarse aggregates- 1 ½ in.‚ 1 in.‚ ¾ in.‚ ½ ‚ 3/8 in.‚ 4 in‚ plus a 4.75 mm(#4 sieve) Fine (0.5 Kg) and coarse (2 to 20 Kg depending on maximum size from 9.5mm to 50 mm (3/8 to 2 in.)) aggregate samples. Sieve shaker supplied in lab Test Procedure For samples we use the dry aggregates
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PARTICLE SIZE ANALYSIS (SIEVING METHOD) OBJECTIVE : To determine the particle size distribution of a soil sample by sieving process. This analysis can be used to predict ground water movement and soil classification. THEORY : Particle size distribution analysis is used in engineering soil classification universally. This is because the particle size plays an important role in the selection of soil in construction. It is also used to predict soil water movement. This analysis can be described
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(coefficient of uniformity and gradation) from particle-size distribution curve. Sieve analysis consists of shaking the sample through a set of sieves that have progressively smaller openings. To conduct a sieve analysis‚ samples are oven dried for at least 24 hours. The soil is placed and shaken through a stack of sieves with openings of decreasing size from top to bottom. The mass of particles retained in each sieve is determined. Results showed that the particle–size distribution curve of coarse
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# 1: Determination of Water Content (August 26‚ 2003) pp. 1-3 2. Experiment # 2: Determination of Specific Gravity of Soil (Sept. 2‚ 2003) pp. 4-7 3. Experiment # 3: Grain Size Analysis: Sieve Analysis (Sept. 9‚ 2003) pp. 8-12 4. Experiment # 4: Grain Size Analysis: Hydrometer Analysis (Sept. 16‚ 2003) pp. 13-18 5. Experiment # 5: Atterberg Limit Tests: Liquid & Plastic Limit (Sept. 23‚ 2003) pp. 19-24 1 DETERMINATION OF WATER CONTENT EXPERIMENT # 1 CE
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screen users‚ to solve your problem. 1. To improve the hole sieve rate‚ a high percentage of open area will help to improve screening effectiveness; usually the rate of welded stainless steel sieve hole could be high. 2. Adjustment of the feed means that the material will be feeding along the entire screen‚ to be sure to make full use of screen surface; 3. To reduce the rate of screen surface plug. You can consider the sieve plate with self-cleaning. such as the spring rod surface or mesh
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