Q6/ A field compaction control test was conducted on a compacted lift. The mass of the material removed from the hole was 1820 g and the volume of the hole was found to be 955 cm'. A small sample of the soil lost 17 g in the drying test and the mass remaining after drying was 94 g. The laboratory control test results are shown in the Figure below. Determine (a) the maximum dry density and the optimum moisture content. (b) Calculate the field dry density and field water content. (c) Find the relative compaction (RC). (d) If end-product specification requires 100% relative compaction and wadd (optimum-3%) to optimum + 1%), determine the acceptability of the field compaction.

Q6/ A field compaction control test was conducted on a compacted lift. The mass of the material removed from the hole was 1820 g and the volume of the hole was found to be 955 cm'. A small sample of the soil lost 17 g in the drying test and the mass remaining after drying was 94 g. The laboratory control test results are shown in the Figure below. Determine (a) the maximum dry density and the optimum moisture content. (b) Calculate the field dry density and field water content. (c) Find the relative compaction (RC). (d) If end-product specification requires 100% relative compaction and wadd (optimum-3%) to optimum + 1%), determine the acceptability of the field compaction.

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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Concept explainers

Soil Compaction Test

Soil compaction is the major area of geotechnical engineering. Soil is composed of multiple pores present on its surface, while the soil is mainly composed of gravel, sand, rocks, etc. The arrangement of these rocks and gravels is such that they build up voids (spaces) between them, which allows spaces for the roots of the plants and crops to spread and absorb the required amount of nutrients. Soil compaction is a major problem primarily caused by human activities, micro-organisms, and other multiple factors.

Question

Q6/ A field compaction control test was conducted on a compacted lift. The mass of the material removed
from the hole was 1820 g and the volume of the hole was found to be 955 cm'. A small sample of the soil
lost 17 g in the drying test and the mass remaining after drying was 94 g. The laboratory control test results
are shown in the Figure below. Determine
(a) the maximum dry density and the optimum moisture content.
(b) Calculate the field dry density and field water content.
(c) Find the relative compaction (RC).
(d) If end-product specification requires 100% relative compaction and wield = (optimum-3%) to optimum +
1%), determine the acceptability of the field compaction.
1.8
1.7
* 1.6
1.5
12
14
16
18
20
w (%)

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