[PDF] Standardisation, Codification and Variety. MVCT 102 - Construction Materials

MVCT 102 - Construction Materials
UNIT 1. Material Science:
PART B – Standardisation, Codification and Variety.
STANDARDISATION, CODIFICATION AND VARIETY IN CIVIL ENGINEERING 

·        Standardization save time, money, materials, labors etc.
·        In very early days’ people uses palm, hand, cubit to measure but lack of equity person to person.

Standards:  

A standard is a result of particular standardization, efforts, approved by recognized authority.
1.   A document containing sets of condition to be fulfilled.
2.   A fundamental unit or physical constant.
3.   An object for physical comparison.

CODING:

An action of devising a brief and systematic combination of letters, numerical and/or for the purposes of representing a product or an abstract matter.
The major purpose of coding in the field of standardization is to secure brevity in designation, while ease of identification will be obtained by decoding.

Code    

Marking or reference which serve dual purpose of complete identity, & similarity with others.

Advantages of coding 

·        Identification
·        Classification
·        Marking
·        Quality & Quality control 
·        Interchangeability 
·        Dimensional interchangeability
·        Reliability 
·        Standard VS Specification

Classification of STANDARDS:

1 Basic Standards 
2 Advanced Standards

Applied on: quantity of materials, products and components, tests, sampling, quality controls, construction.

Requirement of Standards:

1.   Dimensional
2.   Functional
3.   Quality
4.   Interchangeability
5.   Communication

AIM of Standardization

A.   To achieve maximum overall economy in building n term of 
§  Cost
§  Human effort and time
§  Consumption of essential material (scare material) and greater use of locally available materials
This involves judicious choice of building material, unit, product, components, design and construction methods.
B.   To ensure maximum convenience in use:
It leads to simplification, rationalization, variety, reduction and interchangeability of building products, units and components and freezing of critical dimension to ensure compatibility with adjoining parts

C.   To adopt the best solution of recurring problem consistent with A & B
§  Available knowledge
§  Upto-date development 
§  Results of research and development work is taken into account to seek better option and more rational to the problem.

D.  To define the requisite level of quality 
§  Practical evaluation of quality and its attainment are convenient with A & B
§  Standardization needs to provide sampling, procedure, grading scheme.
  

BASIC Process

    I.        To decide technical content of the standards.
  II.        To cast the standard in the standard form
III.        To ensure that the standard formulated following agreed procedure based on the consensus principle.

Methods of development of national standards  

1 Existng Standard Method 
2 Techniical Committe Methods 

Existing Standard Methods 



Technical Committee Method



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Wednesday, September 28, 2016
Posted by Saurabh Gupta

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