cbr, cec 307, experiment, practicals, Soil Mechanics, test

Home Forums CEC 307 Practical cbr, cec 307, experiment, practicals, Soil Mechanics, test

This topic contains 2 replies, has 2 voices, and was last updated by  Nwosuagwu Onyebuchi Christian 4 months, 2 weeks ago.

Viewing 3 posts - 1 through 3 (of 3 total)
  • Author
    Posts
  • #6961

    ugochinyere odionye
    Participant

    NAME: ODIONYE UGOCHINYERE PRINCE
    DEPT: CIVIL ENGINEERING
    LEVEL: HND 1 (EVENING)
    COURSE: CEC 307 PRACTICAL

    QUESTIONS AND ANSWERS ATTACHED
    1. Title of experiment:
    Determination of California Bearing Ratio (C.B.R) Test

    2. Apparatus:
    a. C.B.R mould with diameter 150mm and height of 175mm
    b. Mixing tools (trowel, spoon etc)
    c. Mould collar and the base
    d. Spacer DISC with diameter of 148mm and height of 47.7mm
    e. Surcharge weight of 2.5kg with hole 53mm
    f. Slotted weight of 2.5kg
    g. Penetration plunger with height 100mm and base = 50mm
    h. Loading machine capacity of 5000kg and uniform rate of 1.25mm per hour
    i. Dial gauge
    j. Compaction Rammer
    k. Coating bowl
    l. Filter paper
    j. scraper
    k. wrench
    L. Measuring cylinder.

    3. Procedure:
    i. Soil sample was collected and passed through sieve and poured into a metal tray
    ii. It was thoroughly mixed with water to a homogeneous state
    iii. Remove the main mold from the platform.
    iv. place the spacer disk and filter paper on top of the mold.
    v. Return the mold to the platform.
    vi. Add the soil to the compaction mold.
    VII. Compacting the soil into 3 layers using 25 blows for each layer.
    viii. Remove the upper portion of the compaction layer.
    ix. scrape off any remaining soil.
    x. The mould moist sample was weighed and recorded
    xi. The space disc discover that base plate were inserted as the filter paper was placed out.
    xii. Place the mould in the loading frame and its position was adjusted until the piston is centered on the specimen
    xiii. The total reading of the penetration was recorded.

    4. Precautions:
    a. It was ensured that the reading were recorded carefully so as to avoid error in computation of result
    b. It was ensured that the mould was on leveled surface while compacting so as to have a uniformly distributed blows.
    c. It was ensured that the soil sample was compacted into three layers at the rate of 25 uniformly distributed blows for each layer inside the mould.
    d.

    5. Result:
    Penetration (mm) Unit load kg (f)/cm2 Total load kg (f)
    2.5 70 1350
    5.0 105 2055

    #6965

    u need quality Project Materials? We ‘ve got some for you!Get Yours Now
    9jaengineers Forum
    ….learn, share and build skills
    cbr, cec 307, experiment, practicals, Soil Mechanics, test

    Forums › Forums › CEC 307 Practical › cbr, cec 307, experiment, practicals, Soil Mechanics, test

    This topic contains 0 replies, has 1 voice, and was last updated by ugochinyere odionye 7 hours, 47 minutes

    NAME: NWOSUAGWU ONYEBUCHI CHRISTIAN
    DEPT: CIVIL ENGINEERING
    LEVEL: HND 1 (EVENING)
    COURSE: CEC 307 PRACTICAL

    QUESTIONS
    1. Title of experiment:
    ANSWER.
    Determination of Cal
    ifornia Bearing Ratio (C.B.R) Test

    2. Apparatus:Question4. State the necessary precautions
    Answer: 1. It was ensured that the mold was oiled before the experiment to avoid friction
    2.it was ensured that the mold was on a level surface
    3. It was also ensured that the soil sample was compacted into three layers with and at 25blow for each layer
    a. C.B.R mould with diameter 150mm and height of 175mm
    b. Mixing tools (trowel, spoon etc)
    c. Mould collar and the base
    d. Spacer DISC with diameter of 148mm and height of 47.7mm
    e. Surcharge weight of 2.5kg with hole 53mm
    f. Slotted weight of 2.5kg
    g. Penetration plunger with height 100mm and base = 50mm
    h. Loading machine capacity of 5000kg and uniform rate of 1.25mm per hour
    i. Dial gauge
    j. Compaction Rammer
    k. Coating bowl
    l. Filter paper
    j. scraper
    k. wrench
    L. Measuring cylinder.

    3. Procedure:
    i. Soil sample was collected and passed through sieve and poured into a metal tray
    ii. It was thoroughly mixed with water to a homogeneous state
    iii. Remove the main mold from the platform.
    iv. place the spacer disk and filter paper on top of the mold.
    v. Return the mold to the platform.
    vi. Add the soil to the compaction mold.
    VII. Compacting the soil into 3 layers using 25 blows for each layer.
    viii. Remove the upper portion of the compaction layer.
    ix. scrape off any remaining soil.
    x. The mould moist sample was weighed and recorded
    xi. The space disc discover that base plate were inserted as the filter paper was placed out.
    xii. Place the mould in the loading frame and its position was adjusted until the piston is centered on the specimen
    xiii. The total reading of the penetration was recorded.

    4. Precautions:
    a. It was ensured that the reading were recorded carefully so as to avoid error in computation of result
    b. It was ensured that the mould was on leveled surface while compacting so as to have a uniformly distributed blows.
    c. It was ensured that the soil sample was compacted into three layers at the rate of 25 uniformly distributed blows for each layer inside the mould.
    d.

    5. Result:
    Penetration (mm) Unit load kg (f)/cm2 Tota l load kg (f)
    2.5 70 1350
    5.0 105 2055

    #6966

    NAME:NWOSUAGWU ONYEBUCHI CHRISTIAN
    DEPT: CIVIL ENGINEERING
    LEVEL: HND 1 (EVENING)
    COURSE: CEC 307 PRACTICAL

    1. Title of experiment:
    Determination of California Bearing Ratio (C.B.R) Test

    2. Apparatus:
    a. C.B.R mould with diameter 150mm and height of 175mm
    b. Mixing tools (trowel, spoon etc)
    c. Mould collar and the base
    d. Spacer DISC with diameter of 148mm and height of 47.7mm
    e. Surcharge weight of 2.5kg with hole 53mm
    f. Slotted weight of 2.5kg
    g. Penetration plunger with height 100mm and base = 50mm
    h. Loading machine capacity of 5000kg and uniform rate of 1.25mm per hour
    i. Dial gauge
    j. Compaction Rammer
    k. Coating bowl
    l. Filter paper
    j. scraper
    k. wrench
    L. Measuring cylinder.

    3. Procedure:
    i. Soil sample was collected and passed through sieve and poured into a metal tray
    ii. It was thoroughly mixed with water to a homogeneous state
    iii. Remove the main mold from the platform.
    iv. place the spacer disk and filter paper on top of the mold.
    v. Return the mold to the platform.
    vi. Add the soil to the compaction mold.
    VII. Compacting the soil into 3 layers using 25 blows for each layer.
    viii. Remove the upper portion of the compaction layer.
    ix. scrape off any remaining soil.
    x. The mould moist sample was weighed and recorded
    xi. The space disc discover that base plate were inserted as the filter paper was placed out.
    xii. Place the mould in the loading frame and its position was adjusted until the piston is centered on the specimen
    xiii. The total reading of the penetration was recorded.

    4. Precautions:
    a. It was ensured that the reading were recorded carefully so as to avoid error in computation of result
    b. It was ensured that the mould was on leveled surface while compacting so as to have a uniformly distributed blows.
    c. It was ensured that the soil sample was compacted into three layers at the rate of 25 uniformly distributed blows for each layer inside the mould.
    d.

    5. Result:
    Penetration (mm) Unit load kg (f)/cm2 Total load kg (f)
    2.5 70 1350
    5.0 105 2055

    April 8, 2019 at 6:35 pm#6965REPLY

    Nwosuagwu Onyebuchi Christian
    Participant
    u need quality Project Materials? We ‘ve got some for you!Get Yours Now
    9jaengineers Forum
    ….learn, share and build skills
    cbr, cec 307, experiment, practicals, Soil Mechanics, test

    Forums › Forums › CEC 307 Practical › cbr, cec 307, experiment, practicals, Soil Mechanics, test

    This topic contains 0 replies, has 1 voice, and was last updated by ugochinyere odionye 7 hours, 47 minutes

    NAME: NWOSUAGWU ONYEBUCHI CHRISTIAN
    DEPT: CIVIL ENGINEERING
    LEVEL: HND 1 (EVENING)
    COURSE: CEC 307 PRACTICAL

    QUESTIONS
    1. Title of experiment:
    ANSWER.
    Determination of Cal
    ifornia Bearing Ratio (C.B.R) Test

    2. Apparatus:Question4. State the necessary precautions
    Answer: 1. It was ensured that the mold was oiled before the experiment to avoid friction
    2.it was ensured that the mold was on a level surface
    3. It was also ensured that the soil sample was compacted into three layers with and at 25blow for each layer
    a. C.B.R mould with diameter 150mm and height of 175mm
    b. Mixing tools (trowel, spoon etc)
    c. Mould collar and the base
    d. Spacer DISC with diameter of 148mm and height of 47.7mm
    e. Surcharge weight of 2.5kg with hole 53mm
    f. Slotted weight of 2.5kg
    g. Penetration plunger with height 100mm and base = 50mm
    h. Loading machine capacity of 5000kg and uniform rate of 1.25mm per hour
    i. Dial gauge
    j. Compaction Rammer
    k. Coating bowl
    l. Filter paper
    j. scraper
    k. wrench
    L. Measuring cylinder.

    3. Procedure:
    i. Soil sample was collected and passed through sieve and poured into a metal tray
    ii. It was thoroughly mixed with water to a homogeneous state
    iii. Remove the main mold from the platform.
    iv. place the spacer disk and filter paper on top of the mold.
    v. Return the mold to the platform.
    vi. Add the soil to the compaction mold.
    VII. Compacting the soil into 3 layers using 25 blows for each layer.
    viii. Remove the upper portion of the compaction layer.
    ix. scrape off any remaining soil.
    x. The mould moist sample was weighed and recorded
    xi. The space disc discover that base plate were inserted as the filter paper was placed out.
    xii. Place the mould in the loading frame and its position was adjusted until the piston is centered on the specimen
    xiii. The total reading of the penetration was recorded.

    4. Precautions:
    a. It was ensured that the reading were recorded carefully so as to avoid error in computation of result
    b. It was ensured that the mould was on leveled surface while compacting so as to have a uniformly distributed blows.
    c. It was ensured that the soil sample was compacted into three layers at the rate of 25 uniformly distributed blows for each layer inside the mould.
    d.

    5. Result:
    Penetration (mm) Unit load kg (f)/cm2 Tota l load kg (f)
    2.5 70 1350
    5.0 105 2055

Viewing 3 posts - 1 through 3 (of 3 total)

You must be logged in to reply to this topic.