durability of concrete slideshare

Durability of concrete - SlideShare

Feb 06, 2017  DURABILITY • The durability of concrete is one of its most important properties because it is essential that concrete should be capable of withstanding the conditions for which it has been designed throughout the life of a structure. • The durability of cement concrete is defined as its ability to resist weathering action,chemical attack ...

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Durability of Concrete - SlideShare

Sep 24, 2014  Durability of Concrete Durability of concrete can be defined to mean ‘its resistance to deteriorating influences, which may reside inside the concrete its Slideshare uses cookies to improve functionality and performance, and to provide you with relevant advertising.

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Durability of concrete - SlideShare

Apr 29, 2015  The ability of concrete to resist weathering action, chemical attack, and abrasion while maintaining its desired engineering properties. 3. FACTORS AFFECTING DURABILITY • ABRATION • BIOLOGICAL FACTORS. • TEMPERATURE EFFECT • ENVIRONMENTAL RELATED PHYSICAL PROBLEMS • FREEZING AND THAWING • CHEMICAL ATTACKS.

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Durability of Concrete - SlideShare

Dec 26, 2016  Durability of Concrete 1. Durability of Concrete- A Literature Review Project Report submitted in partial fulfillment of the requirements for the degree of Bachelor of Technology By K Prakash Kumar Singh (Roll No.-130040090) Supervisor Prof. Dr. Prakash Nanthagopalan Department of Civil Engineering Indian Institute of Technology Bombay (November, 2017)

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Durability and Permeability of Concrete - SlideShare

Jan 05, 2015  Durability of Concrete • One of the main characteristics influcing durability of concrete is its permeability to the ingree of water, oxygen, carbon dioxide, chloride, sulphate and other potential deleterious substances. • Most of the durability problems in the concrete can be attributed to the volume change in the concrete.

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durability and permeability of concrete - SlideShare

Dec 04, 2018  Durability Permeability of concrete. 2. Durability • Durability of concrete is its ability to resist weathering action, chemical attack, abrasion or any other process of deterioration . • When exposed to environment durable concrete is likely to retain its original form, quality and serviceability during its lifetime. 3.

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Chapter 2 seviceability and durability - slideshare

Aug 13, 2016  Chapter 2 seviceability and durability. 1. SERVICEABILITY AND DURABILITY OF CONCRETE Prepared By: Assistant Professor Ankit Patel. 2. Durability Durability of Portland cement is defined as its ability to resist weathering action, chemical attack, abrasion or any other process of deterioration that is durable concrete will retain its original ...

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Durability of concrete - SlideShare

Durability of concrete 1. Quality Control in Concrete and Durability factors : An overview by by RAJESH PRASAD, CPM/M, RVNL. KOLKATA 2. INTRODUCTION • Concrete the man made rock is the most widely used construction material. • More than 80,000 crores cum of concrete

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Durability of concrete - SlideShare

Durability of concrete 1. Quality Control in Concrete and Durability factors : An overview by by RAJESH PRASAD, CPM/M, RVNL. KOLKATA 2. INTRODUCTION • Concrete the man made rock is the most widely used construction material. • More than 80,000 crores cum of concrete

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Durability of concrete - pt.slideshare

unit v durability of concrete

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Durability and Permeability of Concrete - pt.slideshare

Durability of Concrete • One of the main characteristics influcing durability of concrete is its permeability to the ingree of water, oxygen, carbon dioxide, chloride, sulphate and other potential deleterious substances. • Most of the durability problems in the concrete can be attributed to the volume change in the concrete.

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Properties of Concrete - Portland Cement Association

The durability of concrete may be defined as the ability of concrete to resist weathering action, chemical attack, and abrasion while maintaining its desired engineering properties. Concrete is exposed to a greater variety of potentially harmful exposure conditions than any other construction material. There are many causes of concrete ...

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STRUCTURE magazine Durability of Reinforced Concrete

When considering a durability design, a key understanding of the environment and the exposure of the materials is essential in achieving a good design. The building code requirements for structural concrete, the American Concrete Institute’s ACI 318-14, defines

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Durability of Reinforced Concrete in Different ...

🕑 Reading time: 1 minute Durability and strength are two most important criteria for the design of reinforced concrete structures. These are the two requirements for the long term performance of concrete structures. Any deficiency in any of the two i.e. durability and strength, could make the structure unfit for the intended purpose.

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Microstructure of Concrete IntechOpen

Oct 05, 2016  1. Introduction. Concrete is a construction material that is extensively used because of its excellent properties such as durability, workability, satisfactory strength, and the easy availability of raw materials (cement, aggregates, and water), which are used to produce it [].By definition, concrete is a composite material that consists of a binding medium and aggregate particles and can be ...

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Aggregate Properties You Need to Know: Strength Durability

Slake Durability is a qualitative test for softer/weaker rocks such as shale, so it is not often used to test aggregates under consideration for concrete or asphalt mix designs. It is useful for evaluating these materials for unbound pavement base course or structural and embankment fill applications.

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What are the various durability tests on concrete? - Quora

The question may be referring to new or old concrete. The following is usually done on new concrete. some of the tests are also done on old concrete to determine its condition. You could start with testing the materials. Cement - soundness testing...

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Hardened Concrete: Properties of Hardened Concrete

Hardened Concrete has a tendency to become porous due to the presence of voids formed during or after placing of concrete. Penetration by the substance may adversely affect the durability, i.e. Ca(OH) 2 leach out and corrosion occurs due to lack of air and moisture. The liquid retaining structure is important in relation to water tightness.

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Self-Healing Concrete: The Future of Construction ...

A project in Ecuador was done by Jonkers where they made a concrete canal and irrigation system with self-healing concrete. Studies on another procedure that focuses on the durability of self-healing concrete with respect to carbonation and chloride ingress has also been initiated and supported by the Korean Government. Source: slideshare

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ABRASION RESISTANCE OF CONCRETE AND THE USE OF

the concrete mix by acting as billions of tiny ball bearings. Due to the very fine particle size of SF, however, an increase in the SF content in the mix tends to increase the water demand if the same workability is to be maintained. 1.3.2 Strength The strength of concrete is usually the property most valued from an engineering viewpoint.

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Shrinkage of concrete - pt.slideshare

Shrinkage of concrete 1. SHRINKAGE OF CONCRETE • Concrete is subjected to changes in volume either autogenous or induced. Volume change is one of the most detrimental properties of concrete, whichaffects the long –term strength and durability. it causes unsightly cracks in concrete and called concrete shrinkage.

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Self‐Compacting Concrete Wiley Online Books

Aug 08, 2011  Self-Compacting Concrete (SCC) is a relatively new building material. Nowadays, its use is progressively changing the method of concrete placement on building sites. However, the successful use of SCC requires a good understanding of the behavior of this material, which is vastly different from traditional concrete.

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Concrete Durability and water resistance - pt.slideshare

Content • Permeation properties of concrete • Pudlo modified durable concrete • Attacks on concrete durability • Case studies

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Shrinkage of concrete - pt.slideshare

Shrinkage of concrete 1. SHRINKAGE OF CONCRETE • Concrete is subjected to changes in volume either autogenous or induced. Volume change is one of the most detrimental properties of concrete, whichaffects the long –term strength and durability. it causes unsightly cracks in concrete and called concrete shrinkage.

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Curing of concrete(1) - SlideShare

Curing of concrete(1) 1. Seminar on CURING OF CONCRETE 2. Curing of concrete is a method by which the concrete is protected against loss of moisture recommended temperature range. Curing will increase the strength and decrease the permeability of hardened concrete.

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STRUCTURE magazine Durability of Reinforced Concrete

When considering a durability design, a key understanding of the environment and the exposure of the materials is essential in achieving a good design. The building code requirements for structural concrete, the American Concrete Institute’s ACI 318-14, defines

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Durability of Concrete Types of Durability and Factors ...

Feb 14, 2017  Durability is defined as the capability of concrete to resist weathering action, chemical attack and abrasion while maintaining its desired engineering properties. It normally refers to the duration or life span of trouble-free performance. Different concretes require different degrees of durability depending on the exposure environment and properties desired.

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Maintenance of Concrete Structures for Durability of RCC ...

🕑 Reading time: 1 minuteMaintenance of Concrete Structures for Durability of RCC Members Modern concrete is a very durable construction material and, if properly proportioned and placed, will give very long service under normal conditions. Many concrete structures, however, were constructed using early concrete technology, and they have already provided well over 50 years of []

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ABRASION RESISTANCE OF CONCRETE AND THE USE OF

the concrete mix by acting as billions of tiny ball bearings. Due to the very fine particle size of SF, however, an increase in the SF content in the mix tends to increase the water demand if the same workability is to be maintained. 1.3.2 Strength The strength of concrete is usually the property most valued from an engineering viewpoint.

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Aggregate Properties You Need to Know: Strength Durability

Slake Durability is a qualitative test for softer/weaker rocks such as shale, so it is not often used to test aggregates under consideration for concrete or asphalt mix designs. It is useful for evaluating these materials for unbound pavement base course or structural and embankment fill applications.

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Concrete Strength and Concrete Durability, Are they ...

Sep 22, 2017  A concrete of 35MPa or 40 MPa can be a more durable concrete than a concrete of 60 MPa or 70MPa from the point of the view of durability performance indicators such as

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Properties of Concrete - Workability, Setting, Bleeding ...

Mar 19, 2017  Fresh concrete is that stage of concrete in which concrete can be moulded and it is in plastic state. This is also called "Green Concrete". Another term used to describe the state of fresh concrete is consistence, which is the ease with which concrete will flow. The transition process of changing of concrete from plastic state to hardened state.

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Repairs and Rehabilitation of Concrete Structures for ...

The durability of the concrete can also be increased particularly on the surface by applications of different materials which make it waterproof, hardened and resistant to chemical attack. Some of the commonly used surface treatments are: Sodium silicate, magnesium or zinc fluoride;

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Durability of Concrete Factor Affecting Durable Concrete

Mar 20, 2019  The quantity of cement used in the concrete mix is a major factor affecting the durability of concrete. If the cement content used is lower than the required, then the water-cement ratio; gets reduced and concrete workability also gets decreased.; Adding more water to this concrete mix results in formation of capillary voids which will make concrete a permeable material inviting deterioration.

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Self Healing Concrete - an overview ScienceDirect Topics

To improve durability aspects of synthetic fiber-based repair mortars, Sierra-Beltran and coworkers proposed to incorporate a biotechnological agent composed of alkali-resistant bacteria and a suitable food source, inspired by bacteria-based self-healing concrete and the concrete liquid repair system previously described in Section 12.4.

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Thermal properties of concrete - BrainKart

Thermal properties of concrete to understand the behavior of concrete to heating and cooling.The study of thermal properties of concrete is an important aspect while dealing with the durability of concrete. Concrete is a material used in all climatic regions for all kinds of structures.The important properties that will be discussed are:

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