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Test Procedure. The procedure of the Proctor Compaction Test consists of the following steps: Obtain about 3 kg of soil. Pass the soil through the No. 4 sieve. Weight the soil mass and the mold without the collar (W m). Place the soil in the mixer and gradually add water to reach the desired moisture content (w).
Proctor Soil Compaction Test Procedure. Take about 20kg of air-dried soil. Sieve it through 20mm and 4.7mm sieve. Calculate the percentage retained on 20mm sieve and 4.75mm sieve, and the percentage passing 4.75mm sieve. If the percentage retained on 4.75mm sieve is greater than 20, use the large mould of 150mm diameter.
Jun 25, 2024 · It involves the following steps: Compact soil in a mold with a rammer. Establish the relationship between content and dry density. Use a 2.5 kg Proctor rammer to compact soil into a 0.95-liter mold. Compact soil in three layers, each with 25 blows from a height of 30 centimeters.
Nov 4, 2021 · Therefore, to properly test for soil compaction, it is necessary to use a compaction tester at a depth of around three to four feet. A test rod needs to be moved down through the soil using a steady and even pressure; soil that is compacted will resist penetration with the rod. Many times, penetration will stop abruptly at a somewhat uniform ...
The Standard Proctor's test is a laboratory-based approach to determine the water content and dry density relationship, providing essential insights for field compaction. It employs a standard mold with a 4-inch internal diameter and an effective height of 4.6 inches, accommodating 1/30 cubic foot of soil. Compaction is carried out in three ...
Oct 12, 2021 · 1. Weigh the empty mold. Begin by weighing the Proctor mold while it’s still empty. Take off the collar before you put the mold on the scale, then note the empty weight on a data sheet. Then weigh the moisture content cups separately and record their weights. 2. Record the mold’s height and diameter.
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Figure 6.1: Adding water to soil sample Figure 6.2: Mixing soil with a trowel; Attach the compaction mold to the base, place some soil in the mold and compact the soil into the number of equal layers specified by the type of compaction method employed. The number of drops of the rammer per layer depends on the type of mold used, as shown in ...
