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INTRODUCTION

Result of soil compaction in soil cannot usefor soil compaction in site (different ofcompactive effort).

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The standard was originally developed to simulatefield compaction in the labPurpose: Find the optimum moisture content at which

the maximum dry unit weight is attainedEquipments;~ 1/30 ft3 mold~ 2.5 kg of hammer

~ 300 mm of drop~ 3 layers of soil~ 27 blows / layer

STANDARD PROCTORCOMPACTION TEST

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COMPACTION PROCTOR EQUIPMENT

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Procedure

1.Obtain 10 lbs of soil passing No. 4 sieve2.Record the weight of the Proctor mold without the base and the(collar) extension, the volume of which is 1/30 ft3.3.Assemble the compaction apparatus.4.Place the soil in the mold in 3 layers and compact using 27 well

distributed blows of the Proctor hammer.5.Detach the collar without disturbing the soil inside the mold6.Remove the base and determine the weight of the mold and

compacted soil.

7.Remove the compacted soil from the mold and take a sample(20-30 grams) of soil and find the moisture content

8.Place the remainder of the molded soil into the pan, break itdown, and thoroughly remix it with the other soil, plus 100

additional grams of water.

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STEP 1

STEP 2

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STEP 3

STEP 4

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STEP 5

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MODIFIED PROCTOR TEST

The modified was developed to simulate largercompaction effort for more serious loads and biggerequipment.

Equipment : 1/30 ft3mold 4.5 kg of hammer

450 mm of drop 5 layers of soil 27 blows / layer

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Procedure

1. Obtain 10 lbs of soil passing No. 4 sieve2. Record the weight of the Proctor mold without the base and the (collar)

extension, the volume of which is 1/30 ft3.

3. Assemble the compaction apparatus.4. Place the soil in the mold in 5 layers and compact using 27 welldistributed blows of the Proctor hammer.

5. Detach the collar without disturbing the soil inside the mold6. Remove the base and determine the weight of the mold and compacted soil.7. Remove the compacted soil from the mold and take a sample (20-30 grams)

of soil and find the moisture content8. Place the remainder of the molded soil into the pan, break it down, and

thoroughly remix it with the other soil, plus 100 additional grams of water.

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Compaction plant types of compaction machines. Grid roller, vibratingroller, tamping roller, vibrating plates, pneumatics rolleretc.

http://www.concrete-catalog.com/vibratory_rollers.htmlhttp://www.concrete-catalog.com/vibratory_plate_compactors.html