scholarly journals Strength and Durability Test on Partial Replacement of Cement by Glass Powder in Self-Compacting Concrete

2020 ◽  
Vol 2 (4) ◽  
pp. 11-15
Author(s):  
Aravindan K ◽  
Arun A
Keyword(s):  
Glass Powder ◽  
Partial Replacement ◽  
Self Compacting Concrete ◽  
Durability Test ◽  
Strength And Durability

scholarly journals STRENGTH AND DURABILITY TEST (SULPHATE ATTACK) ON LIGHT WEIGHT CONCRETE BY PARTIAL REPLACEMENT OF VERMICULITE FOR FINE AGGREGATE AND SILICAFUME FOR CEMENT

2021 ◽  
Vol 5 (12) ◽  
Author(s):  
M. Preethi ◽  
Md. Hamraj ◽  
Ashveen Kumar
Keyword(s):  
Sulphuric Acid ◽  
Concrete Strength ◽  
Partial Replacement ◽  
Fine Aggregate ◽  
Sulphate Attack ◽  
Durability Test ◽  
Measuring Machine ◽  
Strength And Durability ◽  
The Impact ◽  
Current Report

The present study focuses on the preparation of M30 grade concrete by replacing fine aggregate with 0%,5%,10%,15%,20%,25% of vermiculite and cement with 0% and 10% of constant silica fume to improve the performance of concrete. Via experimentation, the impact of acid exposure on concrete strength and weight is investigated in the current report. Concrete cubes of different mixes(12no.’s) are casted and exposed to Sulphuric acid of (pH=3). Cubes with dimensions of 100mm x 100mm x 100mm are cast with M30 concrete and then immersed (cured) in water for 28 days. The cubes are then soaked in 4 percent concentrated Sulphuric acid for 7 days. The compressive strength of the cured cubes is then measured using a compressive measuring machine.

BEHAVIOR OF M 50 GRADE SELF-COMPACTING CONCRETE DEVELOPED USING PORTLAND SLAG CEMENT AND METAKAOLIN

2019 ◽  
Vol 6 (1) ◽  
Author(s):  
Sravya Nalla ◽  
Janardhana Maganti ◽  
Dinakar Pasla
Keyword(s):  
Compressive Strength ◽  
Mineral Admixtures ◽  
Partial Replacement ◽  
Test Results ◽  
Slag Cement ◽  
Self Compacting Concrete ◽  
Destructive Testing ◽  
Compressive Strength Test ◽  
Portland Slag Cement ◽  
Strength And Durability

Self-compacting concrete (SCC) is a revolutionary development in concrete construction. The addition of mineral admixtures like metakaolin, which is a highly reactive pozzolana to the SCC mixes, gives it superior strength and durability. The present work is an effort to study the behavior of M50 grade SCC by partial replacement of Portland Slag Cement (PSC) with metakaolin. Its strength and durability aspects are comparable with a controlled concrete (without replacement of cement). In the present work, a new mix design methodology based on the efficiency of metakaolin is adopted. The optimum percentage replacement of cement with metakaolin is obtained based on compressive strength test results. The influence of metakaolin on the workability, compressive strength, splitting tensile strength and flexural strength of SCC and its behavior when subjected to elevated temperature was investigated through evaluation against controlled concrete and non-destructive testing. From the test results, it was observed that incorporation of metakaolin at an optimum dosage satisfied all the fresh properties of SCC and improved both the strength and durability performance of SCC compared to controlled concrete.

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

2017 ◽  
Vol 12 (1) ◽  
pp. 7-18 ◽  
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.

scholarly journals EFFECT/BEHAVIOUR OF BLACK CURRANT LEAF ASH ON THE STRENGHT OF CONCRETE WITH RESPECT TO A CONTROL MIXES STRENGHT.

2019 ◽  
Author(s):  
Mala Babagana Gutti ◽  
Ani Abdulfatah Musa
Keyword(s):  
Portland Cement ◽  
Ordinary Portland Cement ◽  
Blended Cement ◽  
Partial Replacement ◽  
Cement Concrete ◽  
Black Currant ◽  
Durability Test ◽  
Concrete Production ◽  
The Cost ◽  
Strength And Durability

The use of waste materials with pozzolanic products in concrete production is becoming a worldwide practice. The assessment of the pozzolanic activity of cement replacement materials is becoming increasingly important because of the need for more sustainable cementing products. In this report, black currant leaf ash is used as partial replacement of 5% of the concrete material. The Strength and durability test were carried out in order to assess the feasibility of using black currant leaf ash as partial replacement of cement in concrete. A total of 18 concrete cubes of 150mm x 150mm x 150mm in size were produced with ordinary Portland cement, 9 concrete cubes as control mix and 9 concrete cubes of black currant blended cement concrete, the samples were tested, weighed, and crushed to obtain their compressive strength after curing in water at age 7, 14 and 21 days. The after the study was completed it was found that the strength of the concrete increase as the samples with replacement were almost the same in strength as the control, Therefore, ordinary Portland cement-black currant blended cement concrete could be used in civil engineering and building works, especially where early strength is not a major requirement, thereby reducing the cost of production.

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