Journal of Ceramics and Concrete Technology. ISSN: 2457-0826 (Online)

Authors:-Shivaprasad H, Shruti S Kubyal, Rashmi Khambenour

Abstract:-Concrete is a composite material whose constituents have different properties and also depends on moisture and porosity. Exposure of concrete to elevated temperature affects its mechanical and physical properties. An increase in temperature causes an increase in initial strength and reduces long-term strength. Fibers are added to the concrete in order to improve the characteristics. This study's scope is to evaluate the effect of varying percentages of steel fibers in the concrete mixture subjected to different temperatures and to determine the optimum usage of steel fiber reinforced concrete in the construction field and to prove certain advantages it can provide over conventional practiced.

Authors: Suchampa Bagchi, M Sasi Regha, R Aarthy

Abstract: The paper presents the experimental investigations done using waste or used foundry sand effectively in concrete as a replacement to the natural fine aggregate. Many researchers around the world have tried to find out the best possible ways to incorporate the used foundry sand to the maximum percentage possible which results in minimizing the use of natural aggregates. This paper presents a wide range of research done in utilizing the waste foundry sand along with the fibers and other admixtures used in concrete to get a required strength suitable for various structural and non-structural applications.

Author: Sivananda Reddy Y

Abstract: High standing estimation of building materials utilized for development is a component of incredible concern. Coconut shell as a completely substitution in the place of coarse aggregate may totally effective for designers in construction industry. The coconut shell concrete is a light weight solid which may decrease the self-heap of a structure. The under taken project depends on inspecting attributes of coconut shell concrete when contrasted with conventional concrete. Coconut shells going from 10mm strainer and held on 6.3mm were considered to utilize for study. For the current study M100 grade concrete is used to cast the specimens. The principle properties considered testing on coconut shell concrete and conventional concrete is compressive strength, split tensile strength and flexural strength. Examples were taken by supplanting coarse aggregate with coconut shells completely and cement is supplanted by silica fume with various extents of 5%, 10%, 15%, 20%, 25% for compressive strength test and tests were done at 3, 7, 28, 56 and 90 days of curing, it is observed that the ideal compressive strength outcomes were gotten at 10% of silica fume. Split tensile and flexural strengths of specimens were calculated with replacement of cement by silica fume with different extents of 0%, 5%, 10% and 15%, tests were done at 3, 7 and 28 days of curing. The optimum replacement percentage of cement by silica fume is 10% for compressive strength, split tensile and flexural strength. The principle question of the review is to lessen the utilization of natural aggregate by supplanting them with coconut shells and to decrease the density of concrete which makes concrete for simple dealing with.

Authors: D. Naresh Kumar, Dr. T. Madhu, G. Rajeev Kumar, E. Chaitanya Reddy, K.Venkatesh

Abstact: Infrastructure development is the backbone of developing countries; constructions of a building is a replica of human household belief. Bricks have occupied 40% of the construction of the building, manufacturing of bricks made more demand for infrastructure. This paper reveals good quality, strength, and cheapest bricks manufacturers. All methods helpful depends on the geographical area, 30% sludge mix bricks shows a reduction of its power and increase in water absorption. The use of sludge in the brick can save industrial disposal, land pollution, cost and produce a greener brick for construction. From this research, environmental effects from wastes and disposal problems of waste can be controlled and reduced. A better measure by an innovative construction material is formed through this project. Sludge in the brick can save industrial disposal, land pollution, cost and produce a greener brick for construction.

Authors: M. Rajasekhar, K. Venkataramana

Abstract: This project describes the effect of type aggregate on compressive strength of high strength and normal strength concrete. High strength concrete is a type of high-performance concrete generally with a compressive strength of 40 N/mm2 or greater and normal strength concrete of 20N/mm2 compressive strength of concrete an experimental program is carried out. The different types of coarse aggregate like White Granite, Basalt, and Quartzite are used in this project. Natural sand as fine aggregate and ordinary Portland cement as binding material are used for making concrete mixer. To assess the influence of type of aggregate on compressive strength of concrete cubes of size 150mm x 150mm x 150mm are casted and tested in compression testing machine at the age of 7days,21days and 28 days.

 

Authors: Suchampa Bagchi, Rajkumar. G, Mohanapriya.T, Aadiyapatham. K

Abstract: The main purpose of this review paper is to outline the various research works carried out in the field of fiber reinforced concrete in real time applications and understanding its behavior. This paper summarizes a wide range of literature carried out in the field of fiber reinforced concrete along with replacement of river sand as fine aggregate with any other option like foundry sand by keeping in view the current trends in research industry and highlighting the future cope in this area.

Authors: Dr. P. R. Dhevasenaa, Dr. S. S Jayaaruna

Abstract: The main objective of our project is to evaluate the strength of mortar by using silica fume. Silica fume is a highly pozzolanic materials, because it consists of silica in non-crystalline form with a high specific surface. This study is an experimental on the nature of silica fume and its influences on the properties of mortar. The partially replacement of cement by silica fume shows the strength parameters of mortar. First the strength parameters of mortar without any partial replacement were studied then strength parameters by partial replacement with silica fume have been studied by placing cube on compression testing machine.

In this experimental investigation, Cement is replaced by silica fume with varying percentage of 5%,10%,15%,20%, and 25%. Compressive strength was conducted at 7 days, 14 days and 28 days. Silica fume were used to replace 0% to 25% of cement. The results showed that partial replacement of cement with silica fume had significant effect on the compressive strength of cube. The strength of mortar increases rapidly as we increase the silica fume content and the optimum value of compressive strength is obtained at 15% replacement.

Author: Suchampa Bagchi, R Aarthy, M Sasi Regha, S Sharmila

Abstract: The main purpose of this review paper is to outline the various research works carried out in the field of permeable or pervious or no fines concrete in real time applications and understanding its behavior. This paper summarizes a wide range of literature carried out in the field of permeable pavement by keeping in view the current trends in research industry and highlighting the future cope in this area.

Authors: A. Venkatesh, Dr. G. Sreenivasa Reddy

Abstract: In India vast area was occupied by Black Cotton Soil which contains clay as chief constituent. These soils show minimal bearing capacity and low strength. They swell when come in contact with water and shrink as they dry out. Engineers face problems with such type of soils, which do not possess sufficient strength to carry the imposed loads during construction and the life of the structure. Properties of the soil must be increased to achieve economy and to improve the performance of structures. Soil stabilization is the process of reducing undesirable behaviour of expansive soils. Conventional stabilization methods are time consuming and are proved to be not economical; it became necessary to look for alternative eco-friendly stabilizers like bio-enzymes. Recently there are many bio-enzymes available for soil stabilization such as Renolith, Permazyme, Terrazyme and Fujibeton, proved to be effective and economical. The present study deals the effect of Terrazyme a bio-enzyme on shear strength and CBR value of expansive soil. Laboratory tests were conducted on various dosages, stabilizer was added by replacing 1%,2%,3%,4% of the optimum water content of the black cotton soil.

Authors:-Abhishek Kumar, C.P. Maurya

Abstract:-The required for reasonable and sustainable unusual construction resources to cement in rising countries cannot be underemphasized. Compressed Earth Bricks have gain acceptability as an inexpensive and sustainable construction substance. There is through a required to increase its bearing capacity. Preceding investigate show that Sugarcane Bagasse Ash as a soil stabilizer has yielded optimistic results. However, there is limited investigate on its effect on the mechanical possessions of Compressed Earth Brick. This current research investigated the effect of adding 4%, 6%, 9% and 11% Sugarcane Bagasse Ash on the compressive strength of compressed earth brick. The consequence showed improvement in its compressive strength by 66% with the addition of 11% Sugarcane Bagasse Ash.

Authors:-D. Janaki Ramudu, A. Venkatesh, P.Sudhakar

Abstract:-Permeation grouting is an effective way to improve the engineering properties of the sandy soil. In this technique the grout is injected into the ground without disturbing the soil structure. In this investigation an attempt is made to study the comparison of permeation grouting with cement and lime grout. The cement grout and lime grout are injected into the soil specimen by changing weight of cement and lime which will be at 2%, 4%, 6%, 8%, & 10% by the soil weight. Grouting is conducted in a tank of size 30 x 30 x 30cm. The grouted samples are tested in triaxial test after 1, 7, & 14 days of curing period. The permeability test also conducted on the grouted samples. The test results revealed that the shear strength properties are improved for grouted soil, where as the permeability is reduced.

Authors:-Tejas Doshi, M. B. Patil

Abstract:-The main aim of this experiment is to study the effect of bacteria on the strength and durability properties of normal and GGBS concrete. Cement was replaced with 40% of GGBS by weight. Tests were performed for flexural, shear strength, water absorption, and water sorptivity. Flexural strength and Shear strength of GGBS bacterial concrete was found to be higher when compared to normal concrete and reduction in water absorption and water sorptivity was observed with concentration 105cells/ml of bacteria. The bacteria used in concrete is Pseudomonas Putida which improves the strength and durability of concrete through self-healing effect.

Authors:-Ankit Katiyar, ChandreshKumar Jha

Abstract:-Outlines and discusses necessities for connections in formed concrete buildings, and shows examples from completed structures wherever these necessities are met. A time-proven hypothesis explaining shear behavior at concrete to steel and concrete to concrete interfaces is bestowed. Examples illustrate beam to column connections exploitation this hypothesis. Suggestions for additional study are printed.

 

Though the formed concrete structural systems are being wide used worldwide, Earthquakes are natural disasters that have caused loads of infrastructural injury and loss to human lives. within the past earthquakes, the cost effective formed structural systems had not performed well.

 

The failure of the formed structures was attributed to the poor performance of connections. Connections type the weakest link within the formed concrete structure. For the past four decades although loads of analysis has been dispensed on the behavior of formed structures, a whole understanding of the behavior of formed beam-column connections to lateral loading has not been field demand skills and talents so much on the far side the development engineering and should be a balance amid advanced technology and trends, management, practice abalones and economy.

 

The specimens were classified into 3groups with 2 numbers in every cluster. they're sort I connections - Bolt and Rod connections, sort II connections: Cleat Angle and Stiffened Cleat Connections and sort III connections: fastener Connections. the kind I association consisted of 2 connection details (i) formed connection exploitation JBolt (PC-JB) and (ii) formed connection using rod (PC-TR). II association consisted of 3 connection details (i) formed connection exploitation Cleat Angle (PC-CL) (ii) formed connection using cleat angle and single filler (PC-SS) (iii) formed connection using cleat angle and Double filler (PC-DS). the kind III association consisted of 2 connection details (i) formed connection exploitation fastener bar (PC-DW) and (ii) formed connection using fastener bar and Cleat Angle (PC-DWCL). The formed concrete beam and column close to the joint were additionally elaborated with confinement reinforcement. All the sixteen specimens were tested beneath constant axial load on the higher finish of the column and with cyclic load 

 

The main objective of the study was associate analyze the various particularization of joints in an exterior formed concrete beam-column joint subject to reverse cyclic.

Author:-Prof. Trapti Sharma

Abstract:-Noise pollution or noise interruption is the troubling or avoidable noise that may destruction the activity or equilibrium of human or animal life. The reason of most outside noise is mainly cause by machines and transportation system like motor vehicles, airplane, and trains. Noise pollution affects both health and behaviour of human beings. Unwanted sound (noise) can have psychological effect. Noise pollution can basined on hypertension, high stress levels, hearing loss, sleep disturbances. The ear has the extraordinary ability to handle an enormous range of sound levels. The decibel (abbreviated dB) is the unit of sound which is used to calculate the intensity of sound. The decibel scale is a slightly abnormal because the human ear is very sensitive. Some people with very good hearing can hear sounds down to minus15 dB. If a sound reaches 85 dB or stronger then it can cause permanent damage to hearing. In Kota city noise pollution is becoming a problem. After survey of different parts of Kota we found that Maximum noise pollution at 8pm 88 dB in Vivekanand circle & 66dB in MBS circle. Minimum at 6am 38dB in Gumanpura choraha.

Author: Harish B A

Abstract: This paper presents the results of the experimental investigation of compressive strength of steel fibre reinforced concrete (SFRC). Variables considered in the project work of various shapes and fiber volume fractions. Compressive strength is investigated using mix of M20 grade and hooked, flat, crimped fibres with aspect ratio 50. The fibre volume fraction is varied from 1% to 2% by volume of concrete separately. Standard test specimens for compressive strength were cast and water cured for 28 days. At 1% addition of steel fibres 25%, recycled coarse aggregate with water cement ratio 0.55 compressive strength tests gives best results.

Author: Biswajit Barman

Abstract: Self Compacting Concrete (SCC)[8],[19] is a easily flowable concrete under its own weight and without the need of any vibration, the most advantageous property of SCC is to maintaining homogeneity. The highly fluid nature make it placing at confined sections with reinforcement. The other advantages of SCC is that less time required to place in large sections. Mixture proportions for SCC differ from those of ordinary concrete. The SCC has more powder content and less coarse aggregate. Rounded aggregates would provide a better flowability and less blocking potential for a given water-to-binder ratio, compared to angular, semi-rounded aggregates and the presence of flaky and elongated particles causes of blocking problems in confined areas, and also increase the minimum yield stress. Various type of pozzolanic materials[1],[12], 14] like Fly ash(FA)[3], Metakeolin(MK)[8],Silica fume(SF)[6],Rise Husk Ash(RHA)[14], Ground Granulated Blust Furnace Slag(GGBFS)[2] etc. are added for partial replacement with dry weight of Ordinary Portland Cement(OPC) to enhance the strength, durability, workability of concrete.

Authors: Dr. V. Giridhar, P. Suresh Praveen Kumar, G. Naveena

Abstract: Black cotton soils are known to be expansive soils and possess low strength in construction of structure to bear the loads on it. These are considered to be problematic due to their volumetric changes such as swelling and shrinkage. Black cotton soils are efficient for construction purpose by using additives into it. By adding the additives will modify the properties of expansive soils. In present study an attempt has been made to stabilize the soil using Soil Tech MKIII polymer as a stabilizer. Laboratory experiments were done to check the improvement of the properties of the black cotton soil and studied the compaction, strength and CBR values by using the Soil Tech MK III polymer as a stabilizer in different percentages such as 1%, 2%, 3%, 4% and 5%. It is observed that the CBR value and shear strength is increased by adding Soil Tech MKIII to the soil.

Authors: Virendra Singh, Jyoti, Mahjabi Refat, Ujjwal Maheshwari, Ravi kumar

Abstract: In this paper, the detailed experimental investigation was done to study the effect of partial replacement of cement by Fly Ash (FA) and Rice Husk Ash (RHA) in combine proportion started from 30% FA and 0% RHA mix together in concrete by replacement of cement with the gradual increase of RHA by 2.5% and simultaneously gradual decrease of FA by 2.5%. Last proportion was taken 15%FA and 15% RHA. The tests on hardened concrete were destructive in nature which includes compressive test on cube for size (150 x 150 x 150 mm) at 7,14,28,56 and 90 days of curing as per IS: 516 1959, Flexural strength on beam (150 x 150 x700 mm) at 28 days of curing as per IS: 516 1959 and split tensile strength on cylinder (150 mm ø x 300mm) at 28 days of curing as per IS: 5816 1999. The work presented in this paper reports the effects on the behavior of concrete produced from cement with combination of FA and RHA at different proportions on the mechanical properties of concrete such as compressive strength, flexural strength, and split tensile strength. Investigation reported that compressive strength increases by 30.15% in compared with targeted strength and reduces by 8.73% compared with control concrete at 28 days, flexural strength increases by 4.57% compared with control concrete at 28 days, split tensile strength decreases by 9.58% compared with control concrete at 28 days, were obtained at combination of 22.5% FA and 7.5% RHA. Partial replacement of FA and RHA reduces the environmental effects, produces economical and eco-friendly concrete.

Authors: P. R. Bamane, R.R. Mane, J.G. Jathar

Abstract: The main objective of this paper is to study the effect of addition of hybrid (Crimped steelPolypropylene) fibers on shear strength of reinforced concrete deep beams without shear reinforcement. The effect of hybrid fibers on shear strength of reinforced concrete deep beams with different steel fiber volume fractions (0 %, 1.0 % and 2.0 %), and shear span-to-depth (a/d) ratios 0.60 and 0.66 by keeping tensile reinforcement constant is studied. All the beam specimens are tested under four-point bending test set-up up to failure, and failure load, first crack load, and central deflection are recorded precisely. The tests results are compared with the equations proposed by different codes and authors available in the literature. The test results indicate that the hybrid (Crimped steel-Polypropylene) fiber have significant influence on the shear strength of longitudinally reinforced concrete deep beams. Shear strength increases with increase in fiber volume fraction and decrease ina/dratio.

Authors: Ramveer, Sumit, Aman Gupta, Dhirendra, Shane Alam

Abstract: Under-reamed piles are broadcast-in-situ concrete piles having one or more number of bulbs formed by enlarging the pile considerable ground movements occur due to seasonal variations, filled up grounds or in soft soil strata. Provision of under reamed bulbs has the advantage of increasing the bearing and uplift capacities. It also provides better anchorage at greater depths. An experimental work was programmed and carried out to understand the behavior of under-reamed piles subjected to vertical load. The type of soil used in the present laboratory investigation was sand and mild steel under-reamed pile models this study presents the design of pile based on the influence of geometrical features of the under-reamed pile on its ultimate load carrying capacity. The geometrical features include the length of the pile, number, spacing and position of the bulb.

Authors: Chintaman S. Bari, Dr. Ashish Dhamaniya, Dr. B. V. Khode

Abstract: Air Pollution caused due to human activities is one of the major problems in the whole world and India being third largest contributor for emission of green house gases. Thus to control the air pollution, monitoring for the various pollutants as CO, PM10, PM2.5, SOx and NOx were carried out by CPCB in India. In Surat the daily monitoring was carried out at twelve sampling stations all around the city. The Air Quality Index (AQI) was found to fairly harmful with high concentration of Particulate Matter (PM). PM10 is a complex mixture of dry solid fragments, droplets of .liquids or solid cores with coatings which being highly carcinogenic. Present study aims to study the dispersion of PM10 at unsignalised intersection on urban roads. The temporal variation of the PM10 was studied compared with the traffic volume. It was observed that morning peak shows high concentration of PM10 which goes on decreasing towards off peak then again increases in evening peak.

Authors:-Manoj Kumar Varshaney

Abstract:- Steel structure are used in the form of steel column base, steel roof truss, steel beam girders, and plate girders and these are fixed with either riveting or welding. While riveting in steel structure when the tensile load comes on the member, the rivet hole is deducted from the cross sectional area of member either it may be IS angle, tea section, channel section or I-Section, while assessing rivet diameter through Unwinds formula, the tensile strength usually comes less. Hence by theoretically and on empirical way the author has calculated the rivet diameter assessment through the new revised formula φ =5.6 𑡠than the existing formula previously in vogue by φ =6.5 𑡠and find more tensile strength theoretically. Hence the author of this technical paper promotes the use of φ =5.6 𑡠in place of φ =6.5 𑡠while designed of tensile steel member.

Author: Manoj Kumar Varshaney

Introduction: Steel column base consist of I- steel beam, stands vertically with cover plate and base with steel bearing plate, resting on concrete block as foundation. Steel column base is laterally supported with cleat and Web angle.

Authors: Mahesh S M, Vanishree

Abstract: Vertical piles are used in such structures which receive the heavy loads especially the structures like dry docks, basements and like pumping stations to resist the uplift loads. The loads which are coming on piles are the combination of both vertical and lateral loads, a very few number of researches has been done on this response of pile groups subjected to the combination of both loads. Here the interaction of pile-soil-pile in the structure is to be observed. In this paper we are discussing and presenting the experiments on different piles in dense sand medium, and the behavior of vertical piles under both axial and lateral loads. The combined load test results showed that the resistance, lateral displacement and efficiency at the head of the piles increased substantially for tests performed in the presence of axial loads, suggesting that the presence of axial loads on individual and groups of piles driven in dense sand is detrimental to their lateral capacity.

 

Authors:-Megha P. Jadhav, Rushikesh P. Jadhav

Abstract:-This paper investigated the comparative study of Nylon Reinforced Cement Sheet with Conventional asbestos Sheet. Nylon has many unique properties that it makes suitable for combination with cement mortar. Nylon material is chemically inert and stable in alkaline environment of mortar, with a high melting point and low cost. In this, nylon reinforced cement sheets are casted and different tests are performed on it and results are compared with conventional asbestos sheets.