That classification to saves each subsequent plant in quality or what can be translated a certain quality classification based on clear and transparent criteria,
•and these classifications were conducted according to the international standards, experiences of countries, our practices, and scientific researchers.
Classification Of Ready Mix Companies Program(Ready-Mixed Concrete Certification Scheme)
1. 1
Qatar General Organization
for Standardization
Quality and Conformity Department
Classifications Program
Of
Ready Mix Concrete Plants
2017
DOHA –QATAR
Eng :Adel Al baghdady
3. 3
The past three decades is rightly regarded as modern construction revolution,
wherein execution technique and the construction industry has evolved as to help
achieve the technical level and good time-saving, as well as to reduce the economic cost
of the projects, depending on the evolution of this technology had to take into
consideration some of the controls and technical requirements that help to ascertain the
level of performance and quality, and ensure quality control with no damage to the
surrounding environment as a result of activities held.
As this concept is one of the important aspects in order to achieve and ensure the
safety of urban development in all its aspects, including the side of the concrete, which is
one of the pillars upon which modern constructions industry, so the Quality Management
in concrete factories is more than to be the equipment and production machinery of
concrete and all are even exceed into many other aspects, including the people qualified
to manage the plant, as well as sources of material entering the industry and how to
manage those materials within the plant, including the changes or alter their
characteristics, as well as how it is stored and the work of materials tests, as well as
adjust the quality control process during manufacturing and after Manufacturing and how
waste management and materials or unwanted resulting from the industry, all of these
processes greatly affect the final product, so necessary noted that the quality inside the
plant management (ready-mixed concrete plants) is very important in order to produce
concrete to meet international standards with the lowest possible cost while preserving
the environment.
عن نبذةقطر في الجاهزة الخرسانة صناعة
4. 4
وما العمراني التطور عماد هي قطر دولة في الجاهزة الخرسانة صناعة انتشهدهمن االن قطر
وما الحديثة المستجدات لمواكبة الدولة في المطروحة للمشاريع كبير حجمقطر دولة اليه تهدف
لعام مستقبلية رؤية من0202فانالقطرية العامة الهيئةمع وبالتعاون والتقييس للمواصفات
بالدولة االخري الجهاتالدولة في التطور هذا مع يتوائم بما الصناعة تطوير علي حرصت قد
السنوات في كبير بشكل تطورت قد الخرسانة صناعة ان وحيث البناءة الرؤية هذه وتحقيق
وما االخيرةمن مواصفات في تطور من ذلكتبعQCS 2007مواص اليفاتQCS 2010ثم
مواصفاتQCS 2014تحاول ان الهيئة علي لزاما فكانذلك ومن التطورات تلك مواكبة
شركات لتصنيف التنفيذي البرنامجصناعةالخرسانةالجاهزة.
About the ready mix concrete industry in Qatar
The ready-mixed concrete industry in Qatar is the backbone of urban development
and witnessed Qatar far from the large size of the projects proposed in the state to keep
pace with modern developments and aims to it the State of Qatar of a future vision for
2030, the Qatar General Organization for Standardization, and cooperation with the
other governmental or private bodies that has been keen to develop industry in line
with this development in the state and to achieve this constructive vision , and where
the concrete industry has evolved dramatically in recent years and the subsequent
evolution of the specifications of the QCS 2007 to QCS specifications in 2010 and
then QCS 2014 specification ,it was necessary for the body to try to keep pace with
these developments ,so this executive program for the classification of ready-mixed
concrete industry.
أعالميا الجاهزة الخرسانة جودة مراقبة نظمة
الدول من العديد في الجاهزة الخرسانة مصانع على الجودة مراقبة أنظمة يوجدوتتفاوت المتقدمة
6. 6
There is quality control on the ready-mixed concrete plants in many developed
countries systems of these systems and methods of application of the state and
vary to the other.
In Britain, for example, there is a comprehensive and advanced system to ensure
the quality known as Quality Ready Mix System (QSRMC) is compatible with the
requirements of international standards for quality (ISO9000's) and carried out by
independent. And to join this system is not mandatory, although most of the
factories under this umbrella even be able to compete with others.
In the United States, there is no quality control system is clear and independent as
is the case in Britain, where the US National Association of producers of concrete
(NRMCA) issue a certificate of conformity with the factories that meet the
requirements of the basic equipment that is set up by the Assembly after the
preview and check it out by engineer practitioner licensed to work in the state
where there is a factory.
Most quality systems conform to the general requirements, although they differ in
some details, and if the plant fails to maintain these minimum requirements it
loses their classification, and becomes null recorded in the system.
Also, Saudi Arabia has taken a big step in this subject and has done a
classification of Ready Mix companies based on quality and Classification
Manual for Saudi Arabia is considered as one of the most important references
for this category in the State of Qatar with a variation in the privacy of the State of
Qatar and taking into account their own specifications and climate etc.
أ: البرنامج هداف
اتضح فقد القطرية المطابقة شهادة اجراءات في للخرسانة المنتجة المصانع من كثير دخول بعد
7. 7
ما منها االنتاج مصانع في القصور من كثير هناك ان الهيئة لدييتعلقما او المصنع او بالمختبر
االنتاج حسب الخر مصنع من تختلف قد االشياء وهذه المنتجات جودة علي الحفاظ في يساعد
الرئيس الموضوع ولكن الشركة وحجمهوامختلف المنتجات جودة في التحكم نمن كبيرة بنسبة
, اخر الي مصنعح مصنع لكل يحفظ تصنيف بعمل الهيئة تقوم ان استدعي وهذاالجودة في قةاو
ماواضحه معايير علي بناءا الجودة من معين بتصنيف ترجمته يمكن, وشفافهتم المعايير وهذه
. العلمية واالبحاث الدول وتجارب العالمية للمواصفات فيها الرجوع
أهدافالتصنيف برنامجالجاهزة الخرسانة لشركات
رئيس بصفةيةيهدف التي االساسية الميزة فاناليهاالتصنيف هذاهيضمانجودةالخرسانة
الجاهزةفي المنتجةقطر دولةمس برفع وذلكتوىأداءمصانعالخرسانةم لتتوافق الجاهزةع
الشروطوالمواصفاتالعالميةوالمحلية(QCS)الخاصةبإنتاجالخرسانةالجاهزةوهذه
: هي االهداف
في الجاهزة الخرسانة جودة ضمانقطر دولة.
.الجاهزة الخرسانة صناعة تطوير
خلقروحالمنافسةنطاق فيالجودةبينالمصانعمنخالل.التصنيف
.المواصفات تطوير في للمساهمة البرنامج من االستفادة
كف رفعاءةوفاعليةالبرامجالذاتيةلضبطوتأكيد.المصانع في الجودة
قاع بناءدةمعلوماتعنصناعةالخرسانةالجاهزة.
نشرالوعيبينالمهندسينو المشاريع فيكذلكالمواطنينالمباني اصحاب.
استكمالالتجهيزاتاألساسيةفيمصانعالخرسانةالقائمة الجاهزة.
تحفيزفي الجودة ضبط بأعمال القائم الفني الجهازمصنع كل.
تفعيلبرامجضبطالجودةوالمراقبةالذاتيةفيالمصانع.
Program Objectives
After entering many of ready mix concrete companies in the Qatari certificate of
conformity procedures, it was clear that there are a lot of faults in plants, including
that the laboratory or factory or others that’s helps to maintain the quality of products
8. 8
, and these things may vary from one to another factory as production size or the size
of the company,
but the main topic is how to control the quality of products with various large
proportions from factory to another, and this was the main to the make that
classification to saves each subsequent plant in quality or what can be translated a
certain quality classification based on clear and transparent criteria,
and these calssifications were conducted according to the international standards,
experiences of countries, our practices, and scientific researchers .
The objectives of the classification program for ready-mix concrete
companies
Mainly, the main feature for this classification is:
to ensure the quality of ready-mixed concrete wich produced in the State of Qatar
and to raise the quality of the performance level of ready-mixed concrete plants to
comply with the requirments of global and local specifications (QCS) for the
production of ready-mixed concrete and these goals are :
Ensure the quality of concrete in Qatar.
Development of ready-mixed concrete industry.
Create a spirit of competition in quality between the factories through the
classification scale.
Take advantage of the program to develope the specifications.
Improve the efficiency and effectiveness of programs to self-control and quality
assurance in the factories.
Create information database about ready-mixed concrete construction industry.
Contribute to awareness among engineers in the projects as well as building
owners citizens.
9. 9
Complete the shortage of basic equipment s in the existing ready-mixed concrete
plants.
Stimulate the staff of quality control at each plant.
Activating the quality and self-monitoring programs in factories .
اإلستراتيجيةالعامةللبرنامج
انالبرنامج تطبيق في التالية االستراتيجية تتخذ سوف الهيئةوهي:
يطبقالبرنامجعلىجميعمصانعالخرسانةالجاهزةعلي للحصول المتقدمة قطر دولة في
المطابقة شهادةوذلك فقطبالبرنامج الموضحة المعايير حسب.
Generalstrategyof the program
Qatar standard will take the following strategy in implementing the program:
The program applies to all ready-mixed concrete plants in the State of Qatar
which will submite to get a certificate of conformity .
:التصنيف من الغرض
الجاهزة الخرسانة صناعة تطوير في قوي حافز.
يشجعالمصانعالممتازةعلىالمحافظةعلىتميزهاألنهيعطيها
.المصانع من غيرها على مهمة تسويقية ميزة
يدفعبقيةالمصانعإلىاالرتقاءبمستوىوأداءالمصنعحتى
.المتميزة المصانع منافسة من تتمكن
يحولالمنافسةالسلبيةبينالمصانع)حرباألسعار(إلىإيجابية منافسة
)الجودة على والمحافظة التميز(.
خدمةمهمةللمواطنينوذلكبإعطاءالمستهلكتقييموضوعي مومحايد
.مصنع كل وكفاءة مستوى عن
10. 10
النجاح مقومات
عمليةالتصنيفمبنيةعلىأسسومعاييرواضحةومحددة.
.التامة الشفافية
.ًاسنوي التصنيف قائمة وتحديث المصانع تقويم في االستمرارية
The purpose of the classification:
a strong incentive to the development of ready-mixed concrete industry.
Encourages excellent plants to maintain the distinctiveness because it gives them
an important marketing advantage over other factories.
Push the rest of the factories to upgrade their performance to be able to compete
with the excellent factorie
11. 11
Prevent negative competition among factories( price war ) to positive competition.
(Excellence and maintaining quality).
Important service and an objective impartial assessment by showing the level
and efficiency of each plant to the citizens and consumers.
Ingredients for success
The classification process shall be based on the principles and criteria are clear
and specific.
Full transparency.
Continuity in the evaluation for factories and update the classification list
annually.
a strong
incentive
to the
developme
nt of ready-
mixed
concrete
industry.
14. 14
Classificationcriteria and foundmentals
All plants inter to classification means acceptable, but to differentiate between the
performance we were dividing into three classes: Class A, Class B, C class.
Classification is for ready-mix concrete factories in accordance with the principles
and Criteria Into Three Categories:
Class (A): Factorywith excellentperformance.
Category(B): Factorywith a goodperformance.
Category(C): Factorywith acceptable performance.
the classification process as shown is depends on three main indicators are:
1-Factory Index:
covers the organization of the factory as well
Storage and handling of materials and mixing plants , control rooms , areas of washing
and wastage area, The hot weather precautions , delivery ticket and cumpter system.
2-Laboratory Index:
Covers organization of laboratory, devices, technical crew , record and document for
Quality requirements of materials and concrete productions and curring room .
3-Production Quality Indicator:
Depends on The submittal of company profile for certificate , fulfill the notes after the
inspection , the results of random samples, which are taken from each plant, and maintain
the quality of products and quality of factory during validity of certificates .
15. 15
Work program method:
The classification depends on your earned points according to the fundamentals and
technical criteria evaluation.
TheEvaluation form will fill by employees in accordance with the following
procedure :
No No No
Yes Yes Yes
No No No
Yes Yes Yes
No No No
Yes Yes Yes
Classification
criteria and
foundmentals
Category (C): Factory
with acceptable
performance
Productionquality
indicator:
Category (B): Factory
with a good
performance
Laboratory
Index Factory index
Category (A): Factory
with excellent
performance
Factory &equips,
index > 55 %
QA / QC index >
55 %
Production Quality
Index > 70 %
Factory & equips,
index >70 %
Factory &equips,
index >85 %
QA / QC index
> 85 %
QA / QC index >
70 %
Production Quality
Index > 70 %
Production Quality
Index > 85 %
Class ( C )
Factory
Class (B)
Factory
Class (A)
Factory
Unclassifie
d Factory
START
17. 17
التالية العناصر من ويتكون:
نتائجالبروفايل تقييم02%
نتائجعليها والرد الزيارات تقييم02%
نتائجاالختباراتالمسحوبة للعينات02%
اإلنتاج في التحكم مستوىACI02%
الرسوب مرات عدد02%
How to calculate indicators Category
Firstly – Factory Activity Index (100 Points
It consists of the following elements:
Site organize and environmental precuations 10%
floors and ease of movement 10%
storage and handling of materials 10%
batching plants evaluation 10%
mixer trucks of concrete 10%
Hot weather precautions 10%
Billing and printing system 10%
washing and waste areas 10%
Training and Quality Plan 10%
storage silos 10%
Secondly :laboratory and QC activities
Index (100) points
It consists of the following elements:
18. 18
Quality of laboratory (100 %)
Organization of the laboratory 20%
Technical Staff 30%
Equipments and tools 10%
Compresive strength requirements 10%
cubes curring room 30%
QC activities: 100%
concrete tests and recording method 20%
Statistical analysis of the results 10%
Material tests:
Documentation ,lab. records, internal reports 25%
Documentation, records of indep reports 25%
Arrangment of files and additional files 10%
Internal or external audit System 10%
Thirdly : Quality Of Production Index (100) Points
It consists of the following elements:
Profile Evaluation 30%
Inspection notes and replaying 30%
Test results of samples 20%
level of Control of the of production (ACI) 10%
Number of repetition times 10%
يتم كيفالمصانع تصنيفبناءاالمكتسبة النقاط نسبة علي:
0-( الممتاز االداء ذات المصانعفئة–أ)
(فئة الممتازة المصانع في يشترط-:يلي ما )أ
20. 20
quality laboratory and activities index of QC 85% or more.
The production quality is excellent so that the quality index 85
percent or more.
Factories WithGood Performance (Class -B)
The classification of the plant as a good performance (Class B) If
factories did not achieve the specific requirements of a class (A) so
that a minimum percentage shall be achieve in any of the three
major indexes as the following:
factory activity index at least 70% or more.
laboratory activities Index and QC at least 70% or more .
production quality index at least 70% or more.
Factories WithAcceptable Performance (Class-C )
The classification of the factories with acceptable performance
(Class C) If the factories did not achieve the specific requirements
of the category (B) so that a minimum percentage shall be achieve
in any of the three major indexes as the following:
factory activity index at least 55% or more.
laboratory activities and quality indicator at least 55% or more.
production quality index at least 55%.
التصنيف عمل طريقة: التطبيق وخطوات
حسب البروفايل تقييم يتم الشهادة طلب مع المرفق بالبروفايل الشركة تتقدم عندما
والمتطلباتوجود حال فيحتي المالحظات تعديل الشركة تستطيع مالحظات
الشركة تصنيف ملف في البروفايل درجة وتسجل الملف وقبولاستيفاءها
22. 22
company can edit this notes until they meet the specifications and
you will get the earned the point of profile index .
•Employees of the department will inspect the factory and assess
the factory and laboratory and give you comments and when you
modify the notes will get the earned point of factory and lab index.
•After sampling and complete results and evaluate the results you
will get the earned points of productionquality index.
•The company may upgrade thier earned points if it was
modifying any note .
•After obtaining the certificate and during the period of validity,
if the company committed quality plan and did not record any
observations or notes during that period that will add extra (20)
degrees in the next year .
•After obtaining the certificate and during the period of validity
,If the company does not comply within the period of validity of the
certificate and recorded any notes against so that a( 30)degrees will
reduce from the factory index in the following year.
•During the period of validity of the certificate if serious
violations recorded so that it will subject to the law of a certificate
of conformity (certificate withdrawn)
•Before the issuance of the certificate quality and conformity
department will give you a copyof the classification report to let the
23. 23
company to see the shortcomings and try to be adjusted before the
next certificate
•The company also can ask for the evaluation results of the
classification for each stage at the end of this stage .
•Factories that apply for certificationfor the first time may not
get a rating of more than (B) because they do not have a sufficient
track record of quality
بالمراجع قائمة
http://www.incigrup.com/AR/Sektor-detay/196.
الخرسانة-الخواص–الجودة-ا.د , االختباراتامام محمود–المنصورة جامعة . الهندسة كلية . االنشائية الهندسة بقسم االستاذ
-0220
Nationalreadymixconcreteassociation(NRMCA) http://www.nrmca.org
http://www.cemex.com.eg/AR/Concrete/HowIsMade.aspx
Quality Management System for Concrete Construction ACI 121R-98 Reported by ACI
Committee 121
Qatar.standard.specification(QCS-2014)Section-05:ConcretePart02: Aggregates
http://www.saudireadymix.com/
سحامنطقة في العاملة الصناعية الشركات على ميدانية دراسة : الصناعية للمنظمات المؤسسي األداء على الشاملة الجودة إدارة تطبيق أثرب
الصناعية,جويحان عبدهللا عبدالغفارثائر–االردن االوسط الشرقجامعة-عمان
An Approach for Ready Mixed Concrete Selection for Construction Companies through Analytic
Hierarchy Process,International Journal of Engineering Trends and Technology (IJETT) -
Volume4 Issue7- July 2013
الجاهزة الخرسانة بيع مصانع إلقامة الفنية والمعايير االشتراطات,/دهللا الجار إبراهيم بن محمدالسعودية العربيه ,المملكة-
https://www.momra.gov.sa/generalserv/Specs/spec0010.asp
Qatar standard specification(QCS 2014) Section 05: Concrete Page 4
Part 06: Property Requirements
Criteria for Production Control of Ready Mix Concrete for RMC Capability Certification
Under Ready Mix Concrete (RMC) Plant Certification Scheme (QCI)– Issue1 / May 2013
Quality manual system–Ready mix Qatar member of Lafarge Holcim CO.
http://www.lafarge.com.jo/ - http://www.readymixqatar.com.qa/