cement, lime, or lime kiln dust mixed into the soil reduces the actual moisture content by binding with free water while not reducing the moisture content reading from the nuclear gage.C. Maximum Dry Density. Determine the maximum dry density using the method specified in Table 1015.06-1 …
Precaution to be taken while performing Tensile Strength Test. Tensile testing is one of the most commonly used testing procedures in a wide range of industries. It is meant to determine the tensile strength of the materials which are used in the industries for manufacturing of distinct products.
background of the experiment while the experimental part outlines the procedure for performing the test. The discussion in this manual is divided into three parts viz. portion conclusion, precautions and list of questions. The students have to write the conclusions and fill up the list of precautions to be observed during the experiment.
Curing Concrete Test Specimens Curing of concrete test specimens is usually different from concrete placed during construction. American Society for Testing and Materials (ASTM) has developed two standards for making and curing concrete specimens. ASTM C192 6 is intended for laboratory samples while ASTM C31 7 is intended for field samples ...
the hole while digging. Place all of the soil and gravel removed from the hole in a plastic bag. † Using the 2-mm sieve, sieve the soil in the plastic bag to separate the gravel. Collect the soil in a plastic sealable bag. Put the gravel aside to be used in Step 2. Seal and label the plastic bag. [Note: See Considerations above if soil is wet.] 1
NOTE 6: 3M's TFE-fluorocarbon tape #63 has been found to perform satisfactorily. 6. Proportioning of Mortar. Proportion the dry m aterials for the test mortar by using the specified materials in one of the following combinations: (a) 1 part portland cement to 2.25 parts aggregate by weight conforming to …
9. State the meaning of specific surface area of cement. MAHARASHTRA STATE BOARD OF TECHNICAL EDUCATION Concrete Technology (9021) Experiment . 10. 11. 12. State precautions to be taken while performing dry sieving test on cement.? State meaning of ''Grade 53'' printed on the cement bag.? Write the label of cement bag. ( Space for answers)
wire mesh basket and test sample while immersed. 4. Corrosion-resistant containers with a capacity of approximately 2-gallons. C. PREPARATION OF SAMPLE. 1. Rock Slope Protection:Crush the submitted sample to pass the 1½ inch sieve. Then sieve the crushed material over the 1½ inch, 1 inch, and ¾ inch sieves. Prepare a test specimen weighing ...
Cement gains strength over time, so the specific time of performing the test should be mentioned. Compressive Strength. It is the most common strength test. A test specimen (50mm) is taken and subjected to a compressive load until failure. The loading sequence must be within 20 seconds and 80 seconds. Standard tests:
10. Precautions Taken While Performing Core Cutter Method a. Soil around the core cutter should be removed before lifting the core cutter. This is done to minimize the disturbances. b. This test should be performed only on fine-grained cohesive soils.
🕑 Reading time: 1 minuteProper precautions for the storage of cement such as duration and place of storage, arrangement, atmospheric moisture content etc. is necessary after the process of manufacturing and before using it in the construction site. Because the cement hygroscopic nature, the cement absorbs moisture from the atmosphere very actively and hardens like […]
The sieve analysis / grain size analysis is a test used in civil engineering to access the particle size distribution of a granular material. The sieve analysis can be performed on different type of granular materials including sands, crushed rock, clays, granite, feldspars, coal, soil, a wide range of manufactured powders, grain and seeds, down to a minimum size depending on the exact method.
Sieve analysis is laboratory test procedure in which particles will move vertically or horizontally through sieve mesh. Depending on the needs and particle material different sieving methods are available for the application. They are manual sieving method, mechanical sieving method, dry sieving method and wet sieving method.
sample is dry and soft. B. Using the appropriate quartering sampling method (See Manual Section 1002) obtain an extraction sample of 2000 – 2100 grams. C. The test portion shall be at a "dried to a constant weight " state (moisture free) before testing. NOTE 7: A minimum drying time of 45 minutes at 110 ± 5 °C (230 ± 9 °F) has been
The test is repeated at least 3 times for each soil sample and the average of the result is reported. Safety & Precautions. Clean the sieves with the help of a brush, after sieving; While weighing put the sieve with soil sample on the balance in a concentric position. Check the electric connection of the sieve shaker before conducting the test.
Precautions taken for Standard Penetration Test. Split spoon sampler must be in good condition. The cutting shoe must be free from wear and tear. The height of fall must be 750mm. Any change from this will affect the 'N' value. The drill rods used must be in standard condition. Bent drill rods are not used.
Test Procedure. Fine aggregates. Take a 1kg fine aggregate test sample. Arrange the IS sive in descending 10mm, 4.75mm, 2.36mm, 1.18mm, 600 microns, 300 microns, 150 microns and 75 microns. Now fill the sample to the highest sieve and sieve well for up to 10 minutes. After completion of sieving, then weigh the aggregates retained in each sieve ...
The sieve must be cleaned thoroughly before starting the experiment. iii. Care should be taken to ensure that no cement is spilled. After sieving all residue must be taken out carefully and weighed. 3.2 Data Acquisition The group is required to perform the data acquisition …
The density bottle is cleaned and dried at a temperature of 105 to 110 degree celsius and cooled. The mass of the bottle, including that of stopper is taken. About 5-10g of oven dried sample soil is taken in the bottle and weighed. If the sample contains particle of larger size, it shall be ground to pass a 2-mm sieve before the test.
This test method conforms to the ASTM standard requirements of specification C187. 1.4 Scope: This test method is intended to be used to determine the amount of water (by % weight of dry cement) required to prepare hydraulic cement pastes for testing. Necessity and Use of Normal Consistency: a.
Following precautions should be taken while performing the specific gravity test of bitumen to obtain accurate results: The specific gravity bottles should be cleaned first before use The distilled water should necessarily be freshly boiled and used after cooling
In order to conduct accurate sieving analysis, however, users need to understand the test sieve standards and tolerances, the correct sieving process, and the care and cleaning procedures needed to keep sieves in good condition. Understanding test sieve standards and tolerances. Mesh number represents number of wires per inch (25.4mm)
Test the soil every 3 to 5 minutes until the test indicates the soil is dry. 7. Weigh the dried sample and pan to the nearest 0.01 pound (1 gram). Record this weight. 8. Subtract the weight of the pan from the weight of the pan and the dry sample to obtain the weight of the dried sample. 9.
Sand and gravel obtain maximum density in either a fully dry or saturated state. Testing curves are relatively flat so density can be obtained regardless of water content. The tables on the following pages give a basic indication of soils used in particular construction applications. [See Figures 5, 6 & 7] Figure 3 sieve test What to look for
Average of six reading should be taken for each point of testing for the rebound number. Which Precautions are Needed to Take care while Carrying out Rebound Hammer Test Procedure? The surface should be smooth, clean and dry. The loose surface should be rubbed off with a grinding wheel or stone, before testing.
Take precautions against losing any material. NOTE: Light agitation of the sieve helps to wash the fine aggregate and cement into the container. (e) Place the clean coarse aggregate retained on the 4.75 mm test sieve in a tray. (f) Wash the contents of the container (the material passed through the 4.75 mm test sieve in Procedure 5 (d)) on a 0 ...
Chapter 8 – Level 3 NVQ Technical Certificate … – Pearson Schools. On completion of work, you will need to have the work commissioned and certified. This is to … explain the need to comply with test values describe the … In carrying out such inspection and test procedures, precautions must be taken to ensure no ….. impact, vibration, flora, fauna, radiation, building use and structure.
Soundness test of cement is performed to identify the presence of excess free lime and magnesia in the cement. This test is performed with the help of Le-Chatelier apparatus. Read More About– Soundness Test of Cement; 5. Compressive Strength Test. To perform this test 200 gm of cement and 600 gm of standard sand are taken and mixed thoroughly ...
2. A mixture having 5% asphalt cement requires 4.4 to 4.8 lbs (2000 to 2200 g) of asphalt while a mix having 6% should have 3.7 to 4.4 lbs (1670 to 2000 g). 3. Where a mix has less than 5% asphalt, you may determine the sample size by dividing the anticipated percent asphalt into 10,000. B. Dry The Sample and Dissolve the Asphalt
Cement is spread on the soil material in front of the mixing machine. Cement spreading should be completed in the first working lane and under way in the second lane before mixing operations are begun. This ensures a fullwidth cement spread without a gap between lanes and keeps spreading equipment out of the way of mixing equipment.