scholarly journals Experimental Investigation on Strength and Behavior of PSC Fiber Reinforced Beams with GGBS

2021 ◽  
Vol 23 (12) ◽  
pp. 262-269
Author(s):  
Dr. R L Ramesh ◽  
◽  
Dr. Nagaraja P S ◽  
Raghavendra R ◽  
Gobinath S ◽  
...  
Keyword(s):  
Mechanical Properties ◽  
Steel Fibers ◽  
Mineral Admixture ◽  
Partial Replacement ◽  
Strength Parameter ◽  
Time Production ◽  
Curing Period ◽  
Reinforced Beams ◽  
Natural Aggregates ◽  
And Behavior

The Concrete is one of the most important products which are efficiently and effectively used in the field of construction. The usage of natural aggregates in the process of production of concrete was high which lead to huge deficiency of availability of the natural aggregates. At the same time production of cements leads to more environmental pollution. Therefore, the production of concrete was altered by vast usage of admixtures and replacements for natural aggregates. In this paper M60 grade concrete is prepared by using GGBS as a partial replacement of cement which is a good strength building mineral admixture, the steel fibers were also introduced in the concrete to improve the strength parameter and for ease of work with concrete and addition of AUROMIX – 400 which is provided by FOSROC chemicals Bengaluru as super plasticizers. The concrete specimens like Cubes and Cylinders were casted and allowed to curing over a nominal curing period of 7, 14 and 28 days to know the basic mechanical properties of the concrete with the above replacements and at the same time RCC beams were also casted and cured, then post tensioned to know the flexural details of this special concrete.

An Experiment Investigation on Physical and Mechanical Properties of High Strength Concrete with Suitable Admixture

2019 ◽  
Vol 972 ◽  
pp. 10-15
Author(s):  
B.C. Gayana ◽  
Mallikarjuna Shashanka ◽  
Avinash N. Rao ◽  
Karra Ram Chandar
Keyword(s):  
Mechanical Properties ◽  
High Strength Concrete ◽  
Construction Material ◽  
Physical And Mechanical Properties ◽  
High Strength ◽  
Steel Fibers ◽  
Partial Replacement ◽  
Hardened Concrete ◽  
Conventional Concrete ◽  
Strength Concrete

Concrete is an essential construction material. Even-though conventional concrete performs and satisfy the structures under normal conditions, a few special situations require very high compressive strength of concrete. An experimental investigation is done to develop high strength concrete with suitable admixtures and steel fibers. The properties of fresh and hardened concrete with alccofine as partial replacement for binder and poly-carboxylate ether (Glenium 8233) and steel fibers is investigated for the workability and mechanical properties i.e., compressive, splitting tensile and flexural strength of concrete. Based on the results, the strength increased with the addition of alccofine compared to the control mix. Hence, by optimum percentage of alccofine, high strength of concrete of 112 MPa can be obtained.

scholarly journals Mechanical Characteristics of Hardened Concrete with Different Mineral Admixtures: A Review

2014 ◽  
Vol 2014 ◽  
pp. 1-15 ◽  
Author(s):  
Tehmina Ayub ◽  
Sadaqat Ullah Khan ◽  
Fareed Ahmed Memon
Keyword(s):  
Mechanical Properties ◽  
Mechanical Characteristics ◽  
Drying Shrinkage ◽  
Mineral Admixture ◽  
Mineral Admixtures ◽  
Partial Replacement ◽  
Hardened Concrete ◽  
Granulated Blast Furnace Slag ◽  
Shrinkage And Creep ◽  
Furnace Slag

The available literature identifies that the addition of mineral admixture as partial replacement of cement improves the microstructure of the concrete (i.e., porosity and pore size distribution) as well as increasing the mechanical characteristics such as drying shrinkage and creep, compressive strength, tensile strength, flexural strength, and modulus of elasticity; however, no single document is available in which review and comparison of the influence of the addition of these mineral admixtures on the mechanical characteristics of the hardened pozzolanic concretes are presented. In this paper, based on the reported results in the literature, mechanical characteristics of hardened concrete partially containing mineral admixtures including fly ash (FA), silica fume (SF), ground granulated blast furnace slag (GGBS), metakaolin (MK), and rice husk ash (RHA) are discussed and it is concluded that the content and particle size of mineral admixture are the parameters which significantly influence the mechanical properties of concrete. All mineral admixtures enhance the mechanical properties of concrete except FA and GGBS which do not show a significant effect on the strength of concrete at 28 days; however, gain in strength at later ages is considerable. Moreover, the comparison of the mechanical characteristics of different pozzolanic concretes suggests that RHA and SF are competitive.

scholarly journals Effects of Steel Fibers Geometry on the Mechanical Properties of SIFCON Concrete

2020 ◽  
Vol 6 (1) ◽  
pp. 21-33 ◽  
Author(s):  
Shahad S. Khamees ◽  
Mohammed M. Kadhum ◽  
Nameer A. Alwash
Keyword(s):  
Mechanical Properties ◽  
Steel Fiber ◽  
Volume Fraction ◽  
Fiber Reinforced Concrete ◽  
Steel Fibers ◽  
Partial Replacement ◽  
Fiber Volume ◽  
Fiber Network ◽  
Static Modulus ◽  
Static Modulus Of Elasticity

This research aims to shed light on the effect of steel fiber shape, length, diameter, and aspect ratio on the mechanical properties of slurry infiltration fiber reinforced concrete (SIFCON). This study comprised of casting and testing three groups of SIFCON specimens with 6% fiber volume fraction. The first group was reinforced with micro steel fiber, other reinforced by hook end steel fibers, while the last group of specimens reinforced by mixing two shape of steel fiber as hybrid fiber (3% micro steel fiber +3% hook end steel fiber). Silica fume was used as a partial replacement (10%) by weight of cement. 3.7% super plasticizer was used to make the slurry liquid enough to penetrate through the fiber network, while the w/c ratio kept constant at 0.33. It was found from the results achieved that the compressive strength, static modulus of elasticity, splitting tensile strength and toughness are extremely affected by the geometry of fibers because the network of fibers formed and their density depends on the size and shape of fibers. Where the values of micro steel fibers are far outweighing the values of hooked end fibers. It was also deduced from empiricism results that combining long and short fibers gives excellent results.

scholarly journals An Investigation of the Mechanical Properties of Sintered Fly Ash Lightweight Aggregate Concrete (SFLWAC) with Steel Fibers

2018 ◽  
Vol 64 (1) ◽  
pp. 73-85 ◽  
Author(s):  
B. Ranjith Babu ◽  
R. Thenmozhi
Keyword(s):  
Mechanical Properties ◽  
Compressive Strength ◽  
Fly Ash ◽  
Mechanical Performance ◽  
Lightweight Aggregate ◽  
Steel Fibers ◽  
Lightweight Aggregate Concrete ◽  
Split Tensile Strength ◽  
Natural Aggregates ◽  
Ash Aggregates

Abstractthis study investigates the fresh and mechanical performance of concrete incorporating sintered fly ash lightweight aggregates (SFLWA) both with and without steel fibers. Comparative assessments of natural aggregates with sintered fly ash aggregates were evaluated. Mix design was obtained by the IS method for M30 grade concrete, and within the natural aggregates were replaced with 20%, 40%, and 60% amounts of SFLWA. The addition of SFLWA shows an increase in the workability of the concrete. Replacement with SFLWA increases with an increase in slump value, and decreases in strength parameters. Compressive strength of 42.6 MPa was achieved with a 40% replacement of SFLWA with steel fibers. The mechanical properties such as compressive strength, split tensile strength, flexural strength, elastic modulus, and structural efficiency of SFLWAC were examined, both with and without fibers. The incorporation of fibers drastically improved the mechanical properties of the mix.

Evaluation of Mechanical Properties of BAGcrete

2014 ◽  
Vol 984-985 ◽  
pp. 693-697
Author(s):  
K. Rekha ◽  
R. Thenmozhi
Keyword(s):  
Mechanical Properties ◽  
Physical And Mechanical Properties ◽  
Mineral Admixture ◽  
Partial Replacement ◽  
Hardened Concrete ◽  
Test Results ◽  
Replacement Ratio ◽  
Blended Cements ◽  
Sugarcane Bagasse Ash ◽  
Partial Cement Replacement

The usage of waste materials in making concrete gives a satisfactory solution to some of the problems related to waste management and environmental concerns. In the development of blended cements, some of the Agro wastes such as sugarcane bagasse ash, rice husk ash and wheat straw ash are used as pozzolanic materials. Few studies have been reported on the use of bagasse ash (BA) as partial cement replacement material. This research aims to study the physical and mechanical properties of hardened concrete prepared with bagasse ash as partial replacement material for cement are reported. The Portland cement was replaced with BA in the ratio of 0%, 5%, 10%, 15% and 20% of weight of cement. The compressive strength, splitting tensile strength and flexural strength of concrete at the age of 28 days were investigated. From the test results it was observed that bagasse ash is an effective mineral admixture, with 5% as optimal replacement ratio of cement.

scholarly journals Partial Replacement of Cement Concreete with Biological Green Waste

2018 ◽  
Vol 7 (3.35) ◽  
pp. 68
Author(s):  
Tolmatti Vamshi Krishna ◽  
M. Ashwin Kumar ◽  
Kunchala Anjaneyulu
Keyword(s):  
Mechanical Properties ◽  
Sugarcane Bagasse ◽  
Rice Husk ◽  
Rice Husk Ash ◽  
Research Work ◽  
Morphological Characteristics ◽  
Mineral Admixture ◽  
Partial Replacement ◽  
Acid Attack ◽  
Concrete Production

Bagasse ash (BA), the residue obtained after the burning of sugarcane bagasse as a fuel, has pozzolanic properties with potential use as a supplementary binding material (SCM). Use of Bagasse ash (BA) as a mineral admixture needs to be established, especially in India, where sugarcane cultivation is widespread, to reduce land required for its disposal and cement consumption in construction industry. Hence, to encourage commercial use ofBA with minimum processing, an evaluation of the physical, chemical and  morphological characteristics of a locally available BA and its effect, as SCM on properties of structural concrete was taken up.This research work describes the feasibility of using the Fly Ash (FA) Rice Husk Ash (RHA) and Sugarcane Bagasse Ash(SCBA) waste in concrete production as a partial replacement of cement. This present work deals with the effect on strength and mechanical properties of concrete using Triple blending of cement concrete using FA, RHA and SCBA instead of cement. The cement has been replaced by rice husk ash, accordingly in the range with 0%, 10%, 20% and 30% by weight. Concrete mixture of M20 and M25 and M30, were produced, tested and compared in terms of compressive strengths with the Conventional concrete. These tests were carried out to evaluate the mechanical properties for the test results of7, 14, 28, 56 and 90 days for Compressive strengths and Tensile & Flexural Strengths at 28 days. The durability aspect of the samples for Acid attack, Alkaline attack and Sulphate attack was also tested. The result indicates that the FA, RHA and SCBA improve the Compressive Strength and durability of concrete.  

Possibilities of Recycled Concrete Aggregate in Cement-Based Flowscreed

2014 ◽  
Vol 897 ◽  
pp. 247-251
Author(s):  
Adam Hubáček ◽  
Luc Boehme ◽  
Iveta Nováková
Keyword(s):  
Mechanical Properties ◽  
Recycled Concrete ◽  
Experimental Results ◽  
Recycled Aggregates ◽  
Partial Replacement ◽  
Concrete Aggregate ◽  
Rheological Characteristics ◽  
Test Results ◽  
Recycled Concrete Aggregate ◽  
Natural Aggregates

This paper presents some test-results of using fine recycled concrete as a partial replacement of natural aggregates in cement-based flowscreed. Special attention is given to describing and studying rheological characteristics and mechanical properties of cement-based flowscreed. Experimental results indicate that it is possible to prepare flowscreed with partial replacement of natural aggregates by recycled aggregates and obtain a quality that meets the requirements. This study was partially connected to the research-project RecyFlowscreed [1].

scholarly journals Experimental Study on Properties of Concrete Using Shredded Plastic Waste and M-Sand as Partial Replacement of Fine Aggregate

2021 ◽  
pp. 427-432
Author(s):  
Sindhu Vaardini U ◽  
Pon Soundarya M
Keyword(s):  
Mechanical Properties ◽  
Compressive Strength ◽  
Flexural Strength ◽  
Plastic Waste ◽  
Partial Replacement ◽  
Fine Aggregate ◽  
Conventional Concrete ◽  
Manufactured Sand ◽  
And Behavior ◽  
Land Water

Disposal of large quantity of plastic causes land, water, and air pollution etc.., so a study is conducted to recycle the plastic in concrete. This work investigates about the replacement of natural aggregate with non-biodegradable plastic aggregate made up of mixed shredded plastic waste in concrete. Several tests are conducted such as compressive strength of cube, compressive strength of cylinder, flexural strength test of prism to identify the properties and behavior of concrete using shredded plastic aggregate. Replacement of fine aggregate weight by 0%, 5%, 10%, 15%, 20% with shredded plastic fine (PF) aggregate and manufactured sand (M-Sand). Totally 30 cubes, 30 cylinders and 30 prisms are casted to identify the compressive strength, cylindrical compressive strength, and flexural strength respectively. Casted specimens are tested at 7, 14 and 28 days. The identified results from concrete using shredded plastic aggregate are compared with conventional concrete. Result shows that initially there is increase in mechanical properties then there is reduction in mechanical properties due to addition of shredded plastic aggregate added concrete. This reduction in strength is mainly due to poor bond strength between cement and shredded plastic aggregate.

scholarly journals Influence on the Properties of Concrete Containing Steel Fibers and Alccofine

2020 ◽  
Vol 9 (5) ◽  
pp. 168-170
Keyword(s):  
Mechanical Properties ◽  
Flexural Strength ◽  
High Performance ◽  
Steel Fibers ◽  
Concrete Technology ◽  
Curing Period ◽  
Innovative Materials ◽  
Better Than

Innovative materials are required in the field of concrete technology for the better construction of the structure. The innovative concrete should have better durability and good aesthetical appearance. The present investigation is aimed at achieving high performance, better and more authentic and uniform quality. In this paper, the effect of Alccofine and conjointly Alccofine and steel fibers, on the mechanical properties of concrete has been evaluated after the curing period of 28 and 56 days. The percentage replacement of Alccofine were adopted as 5%, 10% and 15% and 1% steel fibers were added by mass of concrete. Results showed that compressive and flexural strength increased with an increase in Alccofine percentage. It was also observed that concrete with steel fibers along with 15% Alccofine exhibited highest compressive and flexural strength. Thus, the conjoint presence of Alccofine and steel fibers yields better than concrete without admix.

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