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Durability of concrete containing a natural pozzolan as

Durability of concrete containing a natural pozzolan as

Durability of concrete containing a natural pozzolan as ...

Dec 01, 2009  This study reported experimental results allowing the evaluation of the durability of concrete containing an Algerian natural pozzolan. A performance-based

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Durability of concrete containing a natural pozzolan as ...

This paper deals with the application of a performance-based approach on the durability of concrete made with an Algerian natural pozzolan. The evaluation of

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(PDF) Durability of concretes containing natural pozzolan

In this study, the effects of tuff natural pozzolan on properties of Portland cement were investigated. The durability and mechanical properties of concrete made

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Durability of concretes containing natural pozzolan ...

The durability and mechanical properties of concrete made by these cements were studied. It was found that using the natural pozzolan does not significantly

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Durability of concretes containing natural pozzolan ...

The durability and mechanical properties of concrete made by these cements were studied. It was found that using the natural pozzolan does not significantly

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An experimental study on durability properties of concrete ...

An experimental study on durability properties of concrete containing zeolite as a highly reactive natural pozzolan Meysam Najimia,b, Jafar Sobhanib, Babak

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Enhancement of durability of concrete composites ...

May 01, 2014  A parametric experimental study of the effects of Polypropylene fibers (PPF) on early cracking due to drying shrinkage in concretes with Natural Pozzolan Cement

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Durability of concretes containing natural pozzolan ...

Aug 03, 2008  The durability and mechanical properties of concrete made by these cements were studied. It was found that using the natural pozzolan does not significantly affect the mechanical properties of the Portland cement. Furthermore, the natural pozzolan-containing concrete did not perform well in freeze and thaw and sulfate expansion tests.

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Enhancing Concrete Strength, Durability, and Corrosion ...

THE KIRKLAND NATURAL POZZOLAN (KNP) is a Pumiceous Tuff that meets the requirements of the Class N category of ASTM C618 as a natural pozzolan. When used in concrete, the material can provide many benefits, especially in terms of durability. Concrete proportioned with KNP develops properties that are not attainable by concrete

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Durability performance of concrete containing Saudi ...

This paper reports an experimental investigation conducted to evaluate the durability performance of concrete mixtures prepared utilizing blends of Type I Portland cement (OPC) and natural pozzolans (NPs) obtained from three different sources in Saudi Arabia. The control concrete mixture containing OPC alone as the binder and three concrete mixtures incorporating NPs were prepared keeping ...

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Evaluation of Fly Ash Concrete Durability Containing Class ...

Evaluation of Fly Ash Concrete Durability Containing Class II Durability Aggregates Project No. MLR-85-8 By ... Natural Pozzolan for Use as a Mineral Admixture in Portland Cement Con- ... of concrete containing it in a modification of the ASTM C-666, "Resist- ...

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Durability of High Performance Concrete in an Aggressive ...

In Algeria, locally available natural pozzolan of volcanic origin material has the potential for use in environmental friendly concrete as a partial cement replacement. This paper studies the effect of replacement level of pozzolan concrete in sulphated environment. The natural pozzolan has a marked influence on the properties of the concrete.

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Production and Use of Calcined Natural Pozzolans in Concrete

Dec 01, 2001  Since 1993, Ash Grove has developed and directed the manufacture of pozzolans to improve concrete durability, while avoiding the potential problems of byproduct pozzolan availability and uniformity. Processing of these performance-enhancing pozzolans is accomplished by thermally treating and converting crystalline clay materials to amorphous ...

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NS-645 - Assessment of Alternative Pozzolans: Literature ...

(AASHTO M295) requirements for natural . pozzolan. A pavement-grade concrete mixture containing 20%CC as a cement replacement (by weight) produced desired workability and fresh and hardened air content. Strength development was slightly below the control. The use of CC improved the durability of concrete with respect to chlorid e penetration ...

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Fly Ash, Slag, Silica Fume, and Natural Pozzolans, Chapter 3

pozzolan concrete structures can still be seen today, attest-ing to the durability of these materials. The North American experience with natural pozzolans dates back to early 20th century public works projects, such as dams, where they were used to control temperature rise in mass concrete and provide cementi-tious material.

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Mechanical and durability properties of concretes ...

Apr 18, 2016  This paper investigates the application of natural zeolite as a substitute of cement in concrete. It studies the mechanical and durability properties of concretes containing 10% of natural zeolite and superplasticizer, as well as 10% of natural zeolite, superplasticizer and an air-entraining agent in comparison to concretes without natural zeolite.

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Durability performance of concrete containing Saudi ...

some studies reported that the concrete mixtures prepared by incorporating NP showed a higher resistance against acid attack as compared to that of the concrete mixtures containing OPC alone as binder (Rehmani and Ramzanianpour 2008, Siad et al. 2010). Durability performance of concrete containing Saudi natural

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Natural Pozzolans - FlyAsh

Concrete containing natural pozzolan affords the following advantages to developers, contractors, and owners: • Since concrete containing natural pozzolan is not as vulnerable to deterioration or disintegration as rapidly as concrete without natural pozzolan, it ensures low-maintenance buildings that will retain their value over the long term.

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An experimental study on durability properties of concrete ...

An experimental study on durability properties of concrete containing zeolite as a highly reactive natural pozzolan

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(PDF) Mechanical properties and durability of mortar and ...

Mechanical properties and durability of mortar and concrete containing natural pozzolana and limestone blended cements ... High-volume natural volcanic pozzolan and limestone powder as partial replacements for portland cement in self-compacting and sustainable concrete.

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Strength and Durability Properties of Concrete Containing ...

Concrete structures suffer serious deterioration under a corrosive environment. Consequently, the service life of these concrete structures is decreased and deteriorates under combined attack of sulphate and chlorides. Most studies confined on single deteriorating factor such as sulphate attack only or chloride attack only but the current study focused on the influence of natural pumice (NP ...

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Durability of concrete containing a natural pozzolan as ...

Request PDF On Dec 1, 2009, N. Kaid and others published Durability of concrete containing a natural pozzolan as defined by a performance-based approach Find, read and cite all the research ...

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An experimental study on durability properties of concrete ...

An experimental study on durability properties of concrete containing zeolite as a highly reactive natural pozzolan

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(PDF) Concrete Containing Natural Pozzolans: New ...

Aug 01, 2012  an important characteristic in the increase of concrete durability and. mechanical strength (Mehta 1987). Moreover, a finer porosity of ... lightweight aggregate concrete containing natural pozzolan.

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National Pozzolan Association: How Natural Pozzolans ...

The Natural Pozzolan Association (NPA) is a network of natural pozzolan producers working to improve the performance and durability of the nation’s concrete infrastructure. NATURAL POZZOLAN ASSOCIATION. 100 East 155 South, Malad City, ID 83252. 208.252.2808 • [email protected]

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NS-645 - Assessment of Alternative Pozzolans: Literature ...

(AASHTO M295) requirements for natural . pozzolan. A pavement-grade concrete mixture containing 20%CC as a cement replacement (by weight) produced desired workability and fresh and hardened air content. Strength development was slightly below the control. The use of CC improved the durability of concrete with respect to chlorid e penetration ...

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7 Uses of Natural Pozzolans in Concrete Applications [PDF ...

Natural pozzolans are used to produce concrete masonry units. It improves plasticity and cohesion and hence helps in compaction of concrete used in the production of masonry units. Since natural pozzolans reduce concrete durability, the formation of efflorescence on concrete brick units is decreased. 6.

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The effect of content and fineness of natural pozzolana on ...

Effect of natural pozzolan and recycled concrete aggregates on thermal and physico-mechanical characteristics of self-compacting concrete. Construct. Build. Mater. (2020) A. Hadjsadok et al. Durability of mortar and concretes containing slag with low hydraulic activity. Cement Concr. Compos. (2012) M. Valcuende et al. Influence of limestone ...

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Fly Ash, Slag, Silica Fume, and Natural Pozzolans, Chapter 3

pozzolan concrete structures can still be seen today, attest-ing to the durability of these materials. The North American experience with natural pozzolans dates back to early 20th century public works projects, such as dams, where they were used to control temperature rise in mass concrete and provide cementi-tious material.

get price

Mechanical and durability properties of concretes ...

Apr 18, 2016  This paper investigates the application of natural zeolite as a substitute of cement in concrete. It studies the mechanical and durability properties of concretes containing 10% of natural zeolite and superplasticizer, as well as 10% of natural zeolite, superplasticizer and an air-entraining agent in comparison to concretes without natural zeolite.

get price

Durability of Concretes Containing Supplementary Cementing ...

May 01, 2004  Title: Durability of Concretes Containing Supplementary Cementing Materials Under Hot and Aggressive Environment Author(s): A. A. Ramezanianpour and A. R. Pourkhorshidi Publication: Symposium Paper Volume: 221 Issue: Appears on pages(s): 633-646 Keywords: corrosion; durability; natural pozzolan; silica fume; slag Date: 5/1/2004 Abstract: It is well known that supplementary cementing materials ...

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Performance Assessment of Natural Pozzolan Roller ...

present work, the performance of RCC containing a natural pozzolan called Trass, as a supple-mentary cementitious material, and an air-entraining agent for salt scaling was investigated. Mechanical and durability tests were performed on specimens containing a water to binder ratio

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Properties of Concrete Containing Diatomaceous Earth

Jan 01, 2003  Title: Properties of Concrete Containing Diatomaceous Earth Author(s): Arezki Tagnit-Hamou, Nikola Petrov, and Karen Luke Publication: Materials Journal Volume: 100 Issue: 1 Appears on pages(s): 73-78 Keywords: alkali-silica reaction; compressive strength; diatomaceous earth; durability; pozzolan; scaling. Date: 1/1/2003 Abstract: Substituting a percentage of portland cement with natural ...

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Purdue e-Pubs - International Conference on Durability of ...

In the present study, the mechanical properties and durability of blended cement mortars containing nanosilica and natural pozzolans is investigated. Trass and pumice, two different Iranian natural pozzolan, are used in the experiments. For cement blends preparation, nano-silica replacement levels of 2, 3 and 4% by mass of cement was considered; each mixture contained one of the natural ...

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Investigation of Mechanical and Durability Behaviour of ...

Jan 07, 2021  In this study, the changes in the mechanical and durability properties of the concrete mortar as a result of using artificial and natural pozzolanes (blast furnace slag (BFS), natural zeolite (Z) in clinoptilolite form respectively) in the production of concrete mortar separately or together as a replacement material were investigated. For this purpose, Z and BFS were used partially replace ...

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