Effect of Silpozz and Fly Ash on Strength and Durability Properties of Concrete in Sea Water

The use of abundantly available wastes such as Fly ash and ceramic powder in construction industry in the form of geopolymer concrete turns out to be the search of a very promising building material for a sustainable future[15].This study has been undertaken to investigate the strength and durability properties of geopolymer concrete by adding ceramic powder in different percentage as source material in addition with flyash[16]. All investigations are mainly focused towards geopolymer concrete mainly with flyash as source material. In this study, ceramic waste powder is added since it is also one of the major waste material as flyash. Nowadays, almost all the construction are carried out with ceramic products which results with more ceramic waste powder. Thus this work focused to utilize this waste powder into geopolymer concrete. Characteristic strength and primary durability properties are carried out by adding ceramic powder with 50%,40% and30% with fly ash. Thus this paper focuses on varying the proportions of fly ash and ceramic waste powder (50:50, 60:40, 70:30) in geopolymer concrete incorporating with polypropylene fibres in percentage of 0.5%,0.75% and 1% in volume of concrete to evaluate its strength and durability characteristics. The alkaline activator solution used is a mixture of 10 molar Sodium hydroxide and Sodium silicate in the ratio 1:3. Ambient curing condition is applied for the specimens. M-Sand is used instead of fine aggregate, since many literature reveals addition of M-Sand gains more strength in geopolymer Concrete.

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Strength and durability properties of geopolymer paver blocks made with fly ash and brick kiln rice husk ash

Case Studies in Construction Materials ◽

10.1016/j.cscm.2021.e00800 ◽

2021 ◽

pp. e00800

Author(s):

Shaik Numan Mahdi ◽

Dushyanth V Babu R ◽

Nabil Hossiney ◽

Mohd Mustafa Al Bakri Abdullah

Keyword(s):

Fly Ash ◽

Rice Husk ◽

Rice Husk Ash ◽

Brick Kiln ◽

Durability Properties ◽

Strength And Durability

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Mechanical and Durability Properties of Fly Ash Based Concrete Exposed to Marine Environment

Selected Scientific Papers - Journal of Civil Engineering ◽

10.1515/sspjce-2017-0001 ◽

2017 ◽

Vol 12 (1) ◽

pp. 7-18 ◽

Cited By ~ 1

Author(s):

Sarfaraz Ahmed Kagadgar ◽

Suman Saha ◽

C. Rajasekaran

Keyword(s):

Fly Ash ◽

Corrosion Current ◽

Cementitious Materials ◽

Mineral Admixtures ◽

Partial Replacement ◽

Durability Test ◽

Curing Conditions ◽

Durability Properties ◽

Lower Permeability ◽

Strength And Durability

Abstract Efforts over the past few years for improving the performance of concrete suggest that cement replacement with mineral admixtures can enhance the strength and durability of concrete. Feasibility of producing good quality concrete by using alccofine and fly ash replacements is investigated and also the potential benefits from their incorporation were looked into. In this study, an attempt has been made to assess the performance of concrete in severe marine conditions exposed upto a period of 150 days. This work investigates the influence of alccofine and fly ash as partial replacement of cement in various percentages (Alccofine - 5% replacement to cement content) and (fly ash - 0%, 15%, 30%, 50% & 60% to total cementitious content) on mechanical and durability properties (Permit ion permeability test and corrosion current density) of concrete. Usage of alccofine and high quantity of fly ash as additional cementitious materials in concrete has resulted in higher workability of concrete. Inclusion of alccofine shows an early strength gaining property whereas fly ash results in gaining strength at later stage. Concrete mixes containing 5% alccofine with 15% fly ash replacement reported greater compressive strength than the other concrete mixes cured in both curing conditions. Durability test conducted at 56 and 150 days indicated that concrete containing higher percentages of fly ash resulted in lower permeability as well lesser corrosion density.

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