Effect of Crack Width, Density, and Depth on Strength and Durability of Concrete Equivalent Mortar

2021 ◽  
Vol 118 (4) ◽  
Author(s):  
Savitha Sagari Srinivasan ◽  
Raissa Douglas Ferron
Keyword(s):  
Crack Width ◽  
Strength And Durability ◽  
Concrete Equivalent Mortar ◽  
Durability Of Concrete

scholarly journals A Study on Porous Sealing Efficacy of hydrophilic Admixture on Blended Cement Concrete

2018 ◽  
Vol 7 (2.12) ◽  
pp. 446
Author(s):  
L Krishnaraj ◽  
P T. Ravichandran ◽  
M V.A.Karthik ◽  
N Satheeshram Avudaiyappan ◽  
. .
Keyword(s):  
Blended Cement ◽  
Cementitious Materials ◽  
Supplementary Cementitious Materials ◽  
Partial Replacement ◽  
Chloride Permeability ◽  
Split Tensile Strength ◽  
Micro Cracks ◽  
Significant Strength ◽  
Strength And Durability ◽  
Durability Of Concrete

The life of the concrete is strongly influenced by durability parameters. The permeability is one of the main characteristics influencing the durability of concrete. The concrete is more permeable due to the ingress of water, oxygen, chloride, sulphate, and other potential deleterious substances. The durability of concrete is mainly affected by pore structure system of concrete and addingthe supplementary cementitious materials (SCM), such as fly ash, slag cement, and silica fume can be decrease permeability. Crystalline technology enhances the strength of concrete by filling the poresand micro-cracks with non-dissolvable substances. To study the efficiency of crystalline formation in concrete in terms of more permeable should be guaranteed through a specific technique.The effectiveness of crystalline waterproofing system with partial replacement cement by GGBS is studiedin terms of strength and durability. The performance of the two different types of crystalline waterproofing integral admixtures has been studied for compressive strength, Split tensile strength, workability, water permeability, Rapid chloride permeability test and porosity in this paper.The early strength increased in GGBS with crystalline admixture concretes compare to the control concrete. No significant strength reduction is observed in GGBS concretes with crystalline admixture when replaced with 20% and 40% of cement than control concrete.  

Technical Capabilities of Concrete and its Structure Defects

2019 ◽  
Vol 974 ◽  
pp. 255-260
Author(s):  
Ludmila A. Suleymanova
Keyword(s):  
Building Materials ◽  
Materials Science ◽  
Structure Defects ◽  
Recent Advances ◽  
Physicochemical Basis ◽  
Strength And Durability ◽  
New Generation ◽  
Potential Use ◽  
Durability Of Concrete

Theoretical and experimental materials for analyzing the technical capabilities of concrete are generalized and the physicochemical basis for the strength and durability of concrete is developed on the basis of the recent advances in building materials science and other sciences. That may increase the traditional concrete potential use and most importantly – to create the most firm and durable concrete of the new generation.

Strength and durability of concrete in hot spring environments

2009 ◽  
Vol 6 (4) ◽  
pp. 269-280 ◽  
Author(s):  
How-Ji Chen ◽  
Tsung-Yueh Yang ◽  
Chao-Wei Tang
Keyword(s):  
Hot Spring ◽  
Strength And Durability ◽  
Durability Of Concrete

scholarly journals EFFECT OF METAKAOLIN ON STRENGTH AND DURABILITY OF CONCRETE

2009 ◽  
Vol 37 (6) ◽  
pp. 1389-1405
Author(s):  
Mohamed Ahmed Ali Almattar ◽  
Hassan Saad Abdul-Mughni ◽  
Suleiman Ismail Al-Safi
Keyword(s):  
Strength And Durability ◽  
Durability Of Concrete

scholarly journals KAJIAN KARBONASI PADA BETON MUTU TINGGI MEMADAT MANDIRI DENGAN VARIASI KOMPOSISI METAKAOLIN

2020 ◽  
Vol 4 (1) ◽  
pp. 1
Author(s):  
Wibowo Wibowo ◽  
Endah Safitri ◽  
Delista Putri Deni
Keyword(s):  
Construction Industry ◽  
Cement Content ◽  
High Strength ◽  
Experimental Methods ◽  
Self Compacting Concrete ◽  
Carbonation Depth ◽  
Concrete Quality ◽  
Reinforced Steel ◽  
Strength And Durability ◽  
Durability Of Concrete

<p class="Abstract"><em>The construction industry is an important thing to support the development of a country. In concrete construction, quality, strength, and durability of concrete are the main requirements of all. In urban tropical countries, carbonation is one of the essential factors that affect the durability of concrete, and it may cause corrosion of reinforced steel in concrete. Therefore, high strength self-compacting concrete may be expected as the solution, improved by pozzolanic additions, metakaolin with substitution dosage at 10%; 12,5%; 15%; 17,5%; and 20%. This study purposed to determine the effect of metakaolin and its optimum dosage to improve high strength self-compacting concrete quality on its carbonation rates. This study was done by using experimental methods. It needs a plain cylindrical concrete with 75 mm diameter and 150 mm height, and testing by SNI 03-6468-2000, EFNARC 2002, and SEM-PUPR 25-2015. The carbonation test is done using accelerated laboratory carbonation </em><em>in Structures and Materials Laboratory, Faculty of Engineering, Universitas Sebelas Maret </em><em>by soaking the specimens in a 4% carbonate solution for 15 days, 37 days, and 51 days, proceeded by splitting using CTM, and spray it using a 1% phenolphthalein indicator to determine its carbonation depth. Based on the results, metakaolin might improve concrete quality by reducing its carbonation rates by 15% substitution dosage of cement content, with a nominal atmospheric carbonation coefficient 3,71 mm/year<sup>½</sup>, reduced 44,41% from HSSCC without metakaolin substitution. Metakaolin addition might reduce fresh concrete's workability and fulfill self-compacting concrete requirements specified by EFNARC 2002.</em></p>

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