To control the quality of raw-materials used in the
manufacture of concrete, the control of concrete
itself and the maintenance of all equipment used in
manufacturing and testing of the product.
1.3- PURPOSE
To ensure compliance with the Contract
Specification and the specified standards.
2.1- INITIAL SELECTION
CEMENT:
Cement proposed for use shall comply with the
requirements of the ASTM C 150, the cement
manufacturer recommended by UME is the Misr BeniSuef company (MBSC) located in the Beni-Suef area. The
plant operates four dry process lines, each yielding 1.75
million tons per year, using own operated limestone and
clay quarries.
AGGREGATES :
Coarse and Fine aggregates shall comply with ASTM
C33, from the technical point of view and upon our
previous experiences with the concrete aggregates, UME
proposes ATTAKA QUARRY for supplying ggregates to
the project in order achieve wider area of contact that
guarantee continues supply and high quality aggregates,
The source provides sufficient quantities appropriate
for used in concrete production. The performance of the
processing equipment is designed to meet the required
amounts for concrete production also the logistics and
transportation means are satisfactorily fulfilled.WATER:
Government potable water shall be used for concrete
mixing, samples to be gathered from the water source
intended for use and complete analysis has been
implemented and the water was found to be useful for
concrete use.
During the procession of works; In case of doubt only
additional test to verify the conformity of the water
source will be performed in an external independent
laboratory.
ADMIXTURES :
Admixtures complying with ASTM C 494 are produced
and supplied by MBT Egypt or similar approved
admixtures by the Employer. The materials will be
delivered to site ready for use in containers and stored
under special provisions to protect from contamination
and climate prior to their use.
The choice of the admixture type and dose are
dependent upon the trial mixes stage where the
performance of concrete can be observed.
3.1 - MATERIAL RECEIPT, HANDLING, STORAGE AND
TESTING
CEMENT:
Cement proposed for use shall comply with the
requirements of the ASTM C 150, the cement
manufacturer recommended by UME is the Misr BeniSuef company (MBSC) located in the Beni-Suef area. The
plant operates four dry process lines, each yielding 1.75
million tons per year, using own operated limestone and
clay quarries.FINE & COARSE AGGREGATES :
a) No truck shall be allowed to unload before having
obtained the written consent from the site laboratory or
QC Engineer.
b) The Laboratory Technician in charge of the receipt of
the concrete materials shall be responsible of controlling
the aggregates and shall inspect the delivered material
on the trucks, this could take place firstly through visual
inspection by comparison with standard samples and
then random spot samples are gathered to perform the
Sieve Analysis in accordance to the testing standards,
refer to Annex l /Clause 2.
Based on the result shall write ‘accepted’ or ‘rejected’
and sign the delivery ticket accompanying the truck.
c) The Laboratory Manager shall check at random the
material inspected by the technician and shall give all
necessary recommendations.
d) Laboratory Manager shall check that all coarse
aggregates are washed before using and meet the
project’s requirements.
Regarding to the routine testing plan for the coarse
and fine aggregates used in concrete.WATER:
No routine testing is applicable for the mixing water, only
in case of doubt additional test to verify the conformity
with the requirements of the Egyptian Code of Practice
for design and construction of reinforced concrete
structures (ES 208/1995) shall be implemented in an
external accepted laboratory.
ADMIXTURES :
The visual proof of identity, specific gravity and residue
by oven drying will be reviewed upon the delivered
certificate to ensure the compatibility of the admixtures.
In case of doubt additional test to verify the conformity
of the delivered material will be performed in an external
independent laboratory.
Expiry date and manufacture documentation are to be
checked by the Q.C Engineer, for further testing.
CONCRETE :
Testing procedures will take place in parallel to the
concrete production throughout the working day; this
will embrace continuous monitoring for the fresh
concrete properties.
These procedures will include checking the produced
concrete for consistency (slump) and temperature.
4.1 - BATCHING
1) UME shall provide, operate, and maintain at the site a
modern and dependable batching type mixing plant of
a capacity sufficient to meet the construction schedule
and conforming to the related requirements of ASTM
C94.
2) The scales shall be interlocked so that a new batch
cannot be started until the weighing hoppers have been
completely emptied of the last batch and the scales are
in balance.3) The quantities of all materials for concrete should
be accurately measured by weight in weight-batching
equipment with an accuracy that complies to the
tolerances.
4) The plant shall include a device suitable
for proportioning admixture. The discharge
mechanism of the device shall be interlocked with
the discharging operation of the water, so that the
batching of admixture will be automatic. The device
shall be capable of ready adjustment to allow for
varying the quantity of admixture to be batched.4.2. Mixing
1) Concrete mixing equipment shall be capable of
combining all ingredients into a uniform mixture
without segregation. If more than one liquid
admixture is used, these shall be discharged
separately into the batch. The plant assembly
shall be such as to facilitate the inspection of all
operations at all times.
2) Batching and mixing of concrete shall not
commence unless due notice, at least 24 hours in
advance, has been given to the Plant’s Manager, and
the Employer’s confirmation has been obtained prior
to start of the pour.
3) The quantity of material in each batch shall not
exceed the normal continuous rated capacity of the
mixer and the speed of rotation shall be within 1 rpm
of the manufacturer's recommended speed.
4) Components shall be fed into the mixing drum
so as to ensure the most efficient use of the mixing
period and to avoid any loss of material. In no
case shall the mixers be overloaded above their
rated capacity recommended by the manufacturer.
Uniformity in concrete consistency from batch to
batch will be required.
5) UME recommends that re tempering and re-dosing
of concrete is permitted using admixtures only after
consulting the Employer
4.3. Transportations
Concrete will be transported from the batching
plant to the pouring location by means of
concrete truck mixers, for which rotary mixers will
be covered with wet burlap in case of hot weather
pours.
Upon the truck mixer arrival to the pouring
site, the concrete shall be tested for its fresh
properties for acceptance, the person in charge
for, pouring or receiving the concrete also
the laboratory technician on site should sign
the delivery note after writing the arrival and
departure times of the truck mixer in the delivery
note.
The truck mixer is allowed to stay an overall time
of 30min on site, this time embraces both of
testing time of the fresh concrete and the pouring
time elaborated as 5min+ (1min for each loaded
cubic meter of concrete) this time limitation
guarantees a continuous steady flow of truck
mixers.
For achieving a safe operation, good accessibility
for the concrete truck mixers should be provided
at the concrete pouring locations together with the
sufficient lighting in case of pouring at night, acute
turns and ramps are to be avoided also narrow
entrances and outlets
5.1. Means
5.1.1. Personnel.
Laboratory Manager 1
Technical Project need
Labours 2
5.1.2. Equipment.
UME shall provide the batching plant laboratory with
all the necessary equipment and hardware capable to
achieve all the routine and/or suitability tests on the
raw materials supplied for concreting also to conduct
all the necessary tests that monitor the fresh concrete
properties.
These equipments may include but are not limited to the
following:
- Sieves complying with the B.S. and/or ASTM for
fine and coarse aggregates.
- Automatic oven and/or plate heater or electronic
microwave whichever is available.
- 150*150 cubic moulds & 300*150 cylinders +
Compacting rods and/or vibrators.
- Slump cones.
- Digital Balances.
- Thermometers for measuring both; ambient and
concrete temperatures.
5.2. CONSUMABLE MATERIALS
- Metallic trays - Metallic buckets
- Glass or Acrylic Plates. - Plastic buckets.
- Graduated flasks. - Tamping rods.
- Trowels, Shovels and Scoops.
- Meter and or metallic rulers.
5.3. OPERATING INSTRUCTIONS:
- The Batching Plant Laboratory and Quality organization
are provided by the UME.
- Inspection and test plan provides the tests to be
performed.
- The original of these forms shall be filed by and under
the responsibility of the Laboratory Manager and shall be
handed over to the QC/QA upon QC/QA request, for filing
in the Final File of Achievement.
5.4. CONCRETING IN HOT WEATHER
- Water chillers units at all plants.
- Water tanks insulated and cooled.
- Aggregate bins are shaded.
- Transit mixer drums covered with burlap..
- Plasticizer / retarder added to concrete mix to improve
workability and reduce water to allow reasonable placing
time.
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Quality
Every Business relies heavily on the quality control of its products, human capital, data accuracy and reputation. AlBonian AlArabi goal of quality control is to gain more than the customer satisfaction with the highest technology, obligation and quality. AlBonian AlArabi Co. is working full automatic computerized batch plant with production capacity of 400 m3/h, 2k ton of cement storage capacity, sand screen and highly qualified professional well trained stuff. AlBonian AlArabi Co. has been established to become from the first specialized companies of high quality concrete production in Egypt and Middle East.
We embrace holistic development and support for employees with the aim of being a first-choice employer within our sectors. Through a unique combination of engineering, construction and design disciplines and expertise.
Our Products
Our products & Solutions
High performance concrete (HPC) is concrete
that has been designed to be more durable under
stranger than traditional concrete.
HPC mixture are composed of essentially
material as traditional concrete mixtures, but
the proportions are designed, or engineered to
provide strength and durability needed for the
structural.
Screeds and mortars are commonly used as
a means of providing smooth flat floors in
residential, commercial and industrial buildings.
Mortars may also be used to increase structural
depth and strength of the base slab.
Fibers are usually used in concrete to control
surface cracking due to plastic shrinkage
and to drying shrinkage. They also reduce the
permeability of concrete and this reduce bleeding
of water. Some types of fiber produce greater
impact abrasion and shutter-resistance in
concrete.
Lightweight concrete can be defined as a type of
concrete, which includes an expanding agent in
that it increases the volume of the mixture while
giving additional qualities such as less ended the
dead weight. It is lighter than the conventional
concrete.
Steel fiber reinforcement concrete (SFRC) is
concrete made primarily of hydraulic cements,
aggregate and steel in reinforcing fibers. Steel
fibers suitable for reinforcing concrete have be
produced from Steel. One of the greatest benefits
to be gained by using the fiber-reinforcement is
improve long-term serviceability of the structure
or product.
Set compact concrete is an innovative concrete
that does not require vibration for placing
and compaction. It is able to flow under its
own weight, completely filling form work and
achieving full compaction, even in the presence
of congested reinforcement. The hardened
concrete is dense, homogeneous and has the
same engineering Properties and durability as
traditional vibrated concrete.
Shot Crete is an all-inclusive term to describe
the spraying of concrete or mortar that may be
accomplished through a wet-mix process. shot
Crete projected at high velocity onto a properly
prepared surface.