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Title: Standard Operating Procedures of Making a Concrete Block.

Department/

Unit:

This Standard Operating Procedures has been done by Department of

Production and Manufacturing of Concrete Block

Purpose: The purpose of this Standard Operating Procedures of making a concrete

block is to provide instructions in order to manufacture a concrete block.

Who can perform

this SOP:

Skilled worker technician.

Equipment/ Tools Needed:

Personal Protective Equipment: Safety helmet, goggles, hand gloves and face mask.

Tools: Sand, cement, water, gravel and formwork.

Reference Materials: http://www.madehow.com/Volume-3/Concrete-

Block.html

Others: None

Ref No 1993/123

Date 16 April 2013

Page No. 1

http://www.madehow.com/Volume-3/Concrete-Block.htmlhttp://www.madehow.com/Volume-3/Concrete-Block.htmlhttp://www.madehow.com/Volume-3/Concrete-Block.htmlhttp://www.madehow.com/Volume-3/Concrete-Block.htmlhttp://www.madehow.com/Volume-3/Concrete-Block.html

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Ref No 1993/123

Date 16 April 2013

Page No. 2

Procedures:

1. Store the sand and gravel outside in piles.2. Transfer them into storage

bins by conveyer belts.

3. Store the portland cementInto large vertical silos to avoid

moisture.

4. Transfer the required amount of sand.gravel and cement by mechanical

means to a weigh batcher to measure

the amount of each material.

5. Flow the weighed materials into astationary mixer and blend them

together for several minutes.

6. Add small amount of water to the mixer.

1. Dump the thoroughly mixed concreteto an inclined bucket conveyer and

transport it to an elevated hopper.

2. Convey the concrete to another hopperon top of the block machine at a

measured flow rate . When they are

full so that the downward force willmold the concrete. The upper mold

head will compact the molds

3. Push the compacted molds down andout of the molds onto a flat steel pallet.

4. Push the pallet and blocks out of themachine onto a chain conveyer.

Mixing Process Molding

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1. Convey the pallets of blocks to anautomated stacker that will place

them in a curing rack. Move the rack

into a curing kiln when it is full.

2. Hold the blocks in the kiln for 1 to 3hours.

3. Introduce steam gradually into thekiln to raise the temperature not more

than 16C per hour.

4. Cure the blocks at a temperature of

(66-74C)5. Upon reaching the curing temperature

shut the steam off.

6. Soak the blocks in hot moist air for12-18 hours.

7. Dry the blocks after soaking in thekiln again by further raising the

temperature for 3 hours.

1. Roll the racks of curedblocks out of the kiln.

2. Unstack the pallets ofblocks and place them on a

chain conveyer.

3. Push the blocks off fromsteel pallets and fed the

empty pallets back into

block machine.

4. Pass the blocks through a

cuber which aligns alignseach block and stack them

into cube three blocks

across by six blocks deep by

three or four blocks high.

5. Carry the blocks outsidewith a forklift.Place them in

a storage.

Prepared by: Skilled worker technician.

Reviewed by: Project Manager from Production and

Manufacturing of Concrete Block.

Approved by: Chief Manager from Quality Department of

Production and Manufacturing of Concrete

Block.

Ref No 1993/123

Date 16 April 2013

Page No. 3

Curing Cubing

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Standard Operating Procedures of Making a

Concrete Block

UHL2422

English for Technical Communication

NAME STUDENT ID

Mohd Adhan Izmi Bin Roslan AA12227

Wan Mohd Haziq Bin Wan Mohd Kamil AA12080

Maxwell Sayong TB12022

Jason Osen Anak Ahok PA12021

LECTURER

Mdm.Aisyah Hanum Binti Abu Bakar