Effectiveness on mechanical properties of m60 grade scc with partial replacement of cement by different mineral admixture like ggbs, lime powder and metakaolin at various percentages

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.

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Evaluation of Mechanical Properties of BAGcrete

Advanced Materials Research ◽

10.4028/www.scientific.net/amr.984-985.693 ◽

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.

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Partial Replacement of Cement Concreete with Biological Green Waste

International Journal of Engineering & Technology ◽

10.14419/ijet.v7i3.35.29150 ◽

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.

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Effect of Limestone Powder on Mechanical Properties of Engineering Cementitious Composites

Journal of Physics Conference Series ◽

10.1088/1742-6596/2076/1/012082 ◽

2021 ◽

Vol 2076 (1) ◽

pp. 012082

Author(s):

Jianwei Zhou ◽

Baoying Yu ◽

Yaning Kong ◽

Wen Yang ◽

Baojun Cheng

Keyword(s):

Mechanical Properties ◽

Fly Ash ◽

Flexural Strength ◽

Water Demand ◽

Limestone Powder ◽

Partial Replacement ◽

Cementitious Composites ◽

Replacement Ratio ◽

Complete Replacement ◽

Lime Powder

Abstract The effect of limestone powder replacing fly ash on the mechanical properties of engineering cementitious composites was investigated. The results showed that the water demand of engineering cementitious composites due to partial replacement of fly ash by limestone powder, but the water demand of the system decreased when the replacement ratio reached 100%. The flexural strength of the specimen appears to decrease with increasing age due to incomplete replacement of lime powder. The toughness of the specimen can be significantly improved due to the complete replacement of fly ash by limestone powder.

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Combined Effect of Fly-Ash and Ferrochrome Ash as Partial Replacement of Cement on Mechanical Properties of Concrete

E3S Web of Conferences ◽

10.1051/e3sconf/20199302008 ◽

2019 ◽

Vol 93 ◽

pp. 02008

Author(s):

Tribikram Mohanty ◽

Sauna Majhi ◽

Purnachandra Saha ◽

Bitanjaya Das

Keyword(s):

Mechanical Properties ◽

Tensile Strength ◽

Compressive Strength ◽

Fly Ash ◽

Power Plants ◽

Thermal Power ◽

Mineral Admixture ◽

Waste Materials ◽

Partial Replacement ◽

Split Tensile Strength

Due to rapid industrialization extensive quantity of waste materials like fly ash, silica fume, rice ash husk, and ferrochrome ash etc. are generated. Ferrochrome ash is generated from Ferro-alloy industry and fly-ash is produced in thermal power plants are alternative materials which have the potential of being utilized in concrete as a mineral admixture. The present investigation considers the combined influence on strength of concrete using various percentage fly ash and ferrochrome ash as partial replacement of cement. Experiments are carried out to get mechanical properties of ordinary Portland cement by replacement of fly ash by 10%, 20%, 30 % and 3% by ferrochrome ash. Mechanical properties are measured by determining compressive strength, split tensile strength and flexural strength. It can be inferred from the study that a small amount of ferrochrome ash mixed with 30 % fly-ash gives higher compressive strength as compared to fly ash alone. Addition of ferrochrome ash also increases the split tensile strength of concrete. Since ferrochrome ash and fly-ash are both industrial waste, utilization of these waste materials reduced the burden of dumping and greenhouse gas and thereby produce sustainable concrete.

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

Journal of University of Shanghai for Science and Technology ◽

10.51201/jusst/21/121009 ◽

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.

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Experimental investigation on mechanical properties of M20 and M40 grade concrete with partial replacement of M sand and crumb rubber as fine aggregate and fly ash for cement

10.1063/5.0057983 ◽

2021 ◽

Author(s):

M. Sri Harsha Varma ◽

G. V. V. Satyanarayana ◽

P. Shanthi Raj

Keyword(s):

Mechanical Properties ◽

Experimental Investigation ◽

Fly Ash ◽

Crumb Rubber ◽

Partial Replacement ◽

Fine Aggregate

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Recent Attempts in the Design of Efficient PVC Plasticizers with Reduced Migration

Materials ◽

10.3390/ma14040844 ◽

2021 ◽

Vol 14 (4) ◽

pp. 844

Author(s):

Joanna Czogała ◽

Ewa Pankalla ◽

Roman Turczyn

Keyword(s):

Mechanical Properties ◽

Partial Replacement ◽

Total Replacement ◽

Current Trends ◽

Poly Vinyl Chloride ◽

Wide Range ◽

Migration Resistance ◽

Secondary Plasticizer ◽

New Compounds ◽

Ethylhexyl Phthalate

This paper reviews the current trends in replacing commonly used plasticizers in poly(vinyl chloride), PVC, formulations by new compounds with reduced migration, leading to the enhancement in mechanical properties and better plasticizing efficiency. Novel plasticizers have been divided into three groups depending on the replacement strategy, i.e., total replacement, partial replacement, and internal plasticizers. Chemical and physical properties of PVC formulations containing a wide range of plasticizers have been compared, allowing observance of the improvements in polymer performance in comparison to PVC plasticized with conventionally applied bis(2-ethylhexyl) phthalate, di-n-octyl phthalate, bis(2-ethylhexyl) terephthalate and di-n-octyl terephthalate. Among a variety of newly developed plasticizers, we have indicated those presenting excellent migration resistance and advantageous mechanical properties, as well as those derived from natural sources. A separate chapter has been dedicated to the description of a synergistic effect of a mixture of two plasticizers, primary and secondary, that benefits in migration suppression when secondary plasticizer is added to PVC blend.

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Physical and Mechanical Properties of Cement Paste Were Used Partially with Fly Ash and Kaolin Waste

Applied Mechanics and Materials ◽

10.4028/www.scientific.net/amm.866.199 ◽

2017 ◽

Vol 866 ◽

pp. 199-203

Author(s):

Chidchanok Chainej ◽

Suparut Narksitipan ◽

Nittaya Jaitanong

Keyword(s):

Mechanical Properties ◽

Fly Ash ◽

Room Temperature ◽

Physical And Mechanical Properties ◽

Partial Replacement ◽

X Ray Diffraction ◽

X Ray ◽

Lime Water ◽

Diffraction Patterns ◽

Iron Mold

The aims of this research were study the microstructures and mechanical properties for partial replacement of cement with Fly ash (FA) and kaolin waste (KW). Ordinary Portland cement were partially replaced with FA and KW in the range of 25-35% and 10-25% by weight of cement powder. The kaolin waste was ground for 180 minutes before using. The specimen was packing into an iron mold which sample size of 5×5×5 cm3. Then, the specimens were kept at room temperature for 24 hours and were moist cured in the incubation lime water bath at age of 3 days. After that the specimens were dry cured with plastic wrap at age of 3, 7, 14 and 28 days. After that the compounds were examined by x-ray diffraction patterns (XRD) and the microstructures were examined by scanning electron microscopy (SEM). The compressive strength was then investigated.

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