Abrasion Evaluation

 Essay in Abrasion Test

Middle East University

Course: Strength of materials (Laboratory)

Course Number 0902234

Try things out Name: Usure Test simply by Los Angeles Equipment

Date: 11-Mar-2014

Abdullah Al-Saleh

Due Date: 18-Mar-2014

INTRODUCTION

The machine is employed for tests crushed hud relaterade problem, crushed and uncrushed gravel for resistance to abrasion. The aim of the test is usually to find the proportion wear as a result of relative rubbing action between the aggregates and steel balls as harsh charge. The oven-dried arrangements are measured and rotated along with abrasive demand in the equipment for the 500 cycles and percentage of have on so found out it's reported as Los Angeles abrasion worth.

APPARATUS

1 . Los Angeles Scratching Testing Equipment

2 . Stability: a balance having a capacity of at least 5500 g sensitive to 0. you g or perhaps less. several. Sieves: No . 4 and No. 12 woven wire sieves conforming to AASHTO Meters 92. These sieves needs to be at least 12 in. in diameter.

PROCEDURE

1 . Place the test out specimen and abrasive impose in the Oregon Abrasive Screening Machine and close the opening while using dust-tight cover.

2 . Start the testing machine and allow to work for the mandatory number of cycles.

three or more. When the screening machine features completed spinning the required range of revolutions, remove the cover and carefully clear the entire material into a skillet. Remove the rough charge through the pan.

4. Individual the test specimen on the some. 75-mm sieve, and then filter the transferring 4. 75-mm material on the 1 . 70-mm sieve. Combine the material retained on the four. 75 and 1 . 70-mm sieves. Weigh and record these principles to the nearest 1 g.

Midsection East University

Course: Durability of materials (Laboratory)

Study course No . 0902234

Experiment Identity: Abrasion Test by Are usually Machine

Date: 11-Mar-2014

Abdullah Al-Saleh

Due Date: 18-Mar-2014

ADVANTAGES

The device is used for testing crushed slag, smashed and uncrushed gravel pertaining to resistance to usure. The aim of the test is to discover the percentage wear due to the relative rubbing action between the aggregates and metallic balls while abrasive fee. The oven-dried arrangements will be weighted and rotated along with abrasive charge in the machine for the 500 revolutions and percentage of wear and so found out it's reported since Los Angeles abrasion value.

DEVICE

1 . Oregon Abrasion Tests Machine

2 . Balance: an equilibrium having a capacity of for least 5500 g hypersensitive to zero. 1 g or fewer. 3. Sieves: No . 5 and No. doze woven wire sieves conforming to AASHTO M ninety two. These sieves should be at least 12 in. in diameter.

METHOD

1 . Put the test specimen and coarse charge in the Los Angeles Harsh Testing Machine and close the opening with the dust-tight cover.

2 . Start the testing machine and permit to operate intended for the required range of revolutions.

3. When the testing equipment has accomplished rotating the mandatory number of cycles, remove the cover and cautiously empty the entire contents in a pan. Remove the abrasive impose from the skillet.

4. Separate the test specimen on the 4. 75-mm sieve, after which sieve the passing 4. 75-mm materials on the 1 ) 70-mm sieve. Combine the fabric retained on the 4. seventy five and 1 . 70-mm sieves. Weigh and record these values for the nearest 1 g. Middle East University or college

Course: Durability of elements (Laboratory)

Study course No . 0902234

Experiment Identity: Abrasion Check by Are usually Machine

Date: 11-Mar-2014

Abdullah Al-Saleh

Due Date: 18-Mar-2014

ADVANTAGES

The equipment is used to get testing smashed slag, crushed and uncrushed gravel to get resistance to abrasion. The aim of the test is to get the percentage have on due to the relative rubbing actions between the aggregates and metal balls since abrasive charge. The oven-dried arrangements will be weighted and rotated along with rough charge inside the machine to get the five-hundred revolutions and percentage of wear and so found out is actually reported because Los Angeles abrasion value.

EQUIPMENT

1 . La Abrasion Assessment Machine...