Assessment of Scaling Durability of Concrete with CFBC

(PDF) Assessment of Scaling Durability of Concrete with CFBC ...

Assessment of Scaling Durability of Concrete with CFBC Ash by Automatic Classification Rules Maria Marks 1 ; Daria Jó ź wiak-Nied ź wiedzka 2 ; Micha ł A. Glinicki 3 ; Jan Olek 4 ; and Micha ...

Assessment of Scaling Durability of Concrete with CFBC Ash by ...

Jul 07, 2012 · It has been found that machine learning is a tool that can be applied to classify concrete durability. The rules generated by computer programs AQ21 and WEKA by using the J48 algorithm provided a means for adequate categorization of plain concrete and concrete modified with CFBC fly ash as materials resistant or not resistant to the surface ...

Frost salt scaling resistance of concrete containing CFBC fly ash

scaling of concrete modified with addition of such non-standard coal combustion by-products. There is a strong sustainability-driven need to provide a basis for the development of an effective techno-logy for the utilization of CFBC by-products in the concrete industry; in numerous countries the frost-salt aggression is a major durability ...

Prediction of Scaling Resistance of Concrete Modified with ...

Jan 01, 2015 · Automatic categorization of chloride migration into concrete modiï¬ ed with cfbc ash. Computers and Concrete, 9(5):375–387, 2012. [7] M. Marks, D. Jo´z´wiak-Niedz´wiedzka, M. A. Glinicki, J. Olek, and M. Marks. Assessment of scaling durability of concrete with cfbc ash by automatic classiï¬ cation rules.

Journal of Materials in Civil Engineering | Vol 24, No 7

Issue 1: SPECIAL ISSUE: Durability and Service Life of Concrete ... Parallel Gradation Scaling Framework ... Assessment of Scaling Durability of Concrete with CFBC ...

(PDF) Effect of fluidized bed combustion fly ash on the ...

The application of CFBC fly ash improved concrete durability. Jóźwiak-Niedźwiedzka [26] analyzed the influence of CFBC fly ash on the chloride and scaling resistance of concrete. She showed ...

The Influence of Fluidized Bed Combustion Fly Ash on the ...

The application of CFBC fly ash improved concrete durability. Józwiak-Nied´ zwiedzka´ [26] analyzed the influence of CFBC fly ash on the chloride and scaling resistance of concrete. She showed that the cement replacement by 15% and 30% CFBC fly ash provided higher chloride resistance, but only replacement

Michal A. Glinicki

Frost salt scaling resistance of concrete containing CFBC fly ash MA Glinicki, M Zielinski Materials and Structures 42 (7), 993-1002 21 2009 Ocena i projektowanie fibrobetonów na podstawie wytrzymałości równoważnej M Glinicki Drogi i mosty, 5-36 16 2002 Beton ze zbrojeniem strukturalnym MA Glinicki

Frost salt scaling resistance of concrete containing CFBC fly ...

Oct 11, 2008 · The possibility for using coal combustion by-products in concrete exposed to frost-salt aggression was investigated. The research was aimed to assess an influence addition of circulating fluidized bed combustion (CFBC) fly ash on frost-salt scaling of air-entrained concrete. For evaluation of the resistance of concrete to frost salt scaling the test called “depth sensing indentation” (DSI ...

Prevention of Concrete Scaling - Portland Cement Association

Scaling is defined as a general loss of surface mortar or mortar surrounding the coarse aggregate particles on a concrete surface. This problem is typically caused by the expansion of water due to freezing and thawing cycles and the use of deicing chemicals; however, properly specified, produced, finished, and cured quality concrete need not ...

Engineering, Durability, and Sustainability Properties ...

Sustainability 2020, 12, 3520 3 of 19 between CR and cement paste can be improved and the concrete matrix can be compacted due to the filler ability of NS. In addition, there are also research results focusing on the durability of PCC ash concrete as follows.

Mechanism for Salt Scaling - Valenza - 2006 - Journal of the ...

Mar 23, 2006 · Engin Yener, A new frost salt scaling mechanism for concrete pavements based on brine rejection from ice layer adhered to concrete surface, Road Materials and Pavement Design, 10.1080/14680629.2014.975153, 16, 1, (89-100), (2014).

Effect of finishing practices on surface structure and salt ...

Nov 01, 2019 · Assessment of concrete bleeding duration is of interest to field engineers and future work may include conducting the proposed testing method in different weather conditions. In addition, more research is required to investigate the effect of slag replacement on salt scaling resistance of concrete.

Surface Scaling and Spalling of Concrete | Civil Engineering ...

Scaling is a form of disintegration and is due in most part to freeze – thaw reactions which cause the concrete to flake or peel off at the exposed surface. Surface scaling due to freezing-thawing Scaling is indicative of poor air – void characteristics of the concrete .

Repair of Scaled Surface Areas of Newly Constructed Cement ...

Premature concrete pavement surface defects such as scaling, pop-outs, crazing, map cracking, shrinkage cracking, and loss of texture etc., have become the commonly reported pavement distresses on a newly constructed cement concrete road in India, especially in the last few years.

CarbonCure Durability Assessment Report

The compressive strength data is summarized in Figure 2. The strength of the concrete subjected to the carbon dioxide treatment ranged between 101% and 109% of the control strength across the various test ages through 91 days. It can be concluded that the carbon dioxide had a neutral to small beneficial effect on the concrete strength. Absorption

Assessment of the durability of concrete from its permeation ...

Mar 01, 2001 · The engineering properties of concrete such as strength, durability, shrinkage and permeability are directly influenced and controlled by the number, type, size and distribution of pores present in the cement paste, the aggregate components and the interface between the cement paste and the aggregate.

Types and Causes of Concrete Deterioration

The exceptional durability of portland cement concrete is a major reason why it is the world’s most widely used construction material. But material limitations, design and construction practices, and severe exposure conditions can cause concrete to deteriorate, which

Freeze–Thaw Durability and Salt Scaling Resistance Assessment ...

Freeze–Thaw Durability and Salt Scaling Resistance Assessment of Portland Cement Concrete Composite Pavement. The SHRP 2 R21 project on composite pavement investigated the durability of various mixtures of portland cement concrete (PCC) used in the construction of a two-layer composite PCC pavement.

Prediction of the Chloride Resistance of Concrete Modified ...

The assessment of concrete resistance to chloride ingress is fundamental for the durability of reinforced concrete structures exposed to deicing salt and the marine environment . Numerous papers on chloride penetration resistance of concrete modified with standard siliceous fly ash were recently reviewed in [ 7 ].

Durability - Introduction - The Concrete Portal

Durability of hydraulic-cement concrete is defined as its ability to resist weathering action, chemical attack, abrasion, or any other process of deterioration (ACI). Durable concrete will retain its original form, quality, and serviceability when exposed to its environment. Concrete is an inherently durable material.

Project: Stamp Out Scaling| Concrete Construction Magazine

A report of a concrete industry effort to overcome those factors which contribute to the higher-than-necessary incidence of scaling concrete surfaces, particularlyin exterior residential concrete A durability study by three ready mixed concrete producers from Columbus, Ohio has shaken the widely held assumption that concrete exposed to deicers ...

Recent durability studies on concrete structure - ScienceDirect

Dec 01, 2015 · The durability of concrete has attracted significant attention over the past several decades and is still a research hotspot until now. This paper reviews and discusses recent research activities on the durability of concrete, including: 1) major durability problems such as alkali aggregate reaction, sulfate attack, steel corrosion and freeze–thaw; 2) durability of concrete in marine ...

Experimental Comparison of Methods to Assess the Durability ...

Oct 12, 2017 · In cold climates, deicing agents are used to reduce traffic problems due to ice and snowdrifts. However, the use of deicing salts results in accelerated scaling of concrete surfaces on account of damage caused by salt combined with rapid freeze–thaw cycles. These cycles reduce user safety and the service life of concrete pavement. Moreover, scaling is the deterioration of concrete due to the ...

ASTM International - Journal of Cement, Concrete and ...

Freeze-Thaw Durability of Concrete With and Without Silica Fume in ASTM C 666 (Procedure A) Test Method: Internal Cracking Versus Scaling. Effect of Cement Replacement, Content, and Type on the Durability Performance of Fly Ash Concrete in the Middle East. Trade-Off of Gradation and Cost Requirements in Aggregate Blending

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