Analysis of Floating House by using ANSYS: Platform Material Comparison of Expanded Polystyrene and Polyvinyl Chloride Pipe
First Order Basis Splines to Perform Isogeometric Topology Optimisation to Design the Outline of Bridge Pier and Analyse using Idea Statica®
Performance Based Seismic Design of Reinforced Concrete Structure using Inelastic Static Pushover Analysis
Cubic Basis Splines to Perform Topology Optimization of Laminated Composite Regular Cylindrical and Elliptical and Hyperbolic Thin Shell Structures using Inverse Buckling Formulation
A Study on Futuristic Intelligent Transportation Systems & Smart Technologies in Urban Areas: A Review
Estimating the Soil Moisture Index using Normalized Difference Vegetation Index (NDVI) And Land Surface Temperature (LST) for Bidar and Kalaburagi District, Karnataka
Roughness Evaluation of Flexible Pavements Using Merlin and Total Station Equipment
Site Suitability Analysis for Solid Waste Dumping in Ranchi City, Jharkhand Using Remote Sensing and GIS Techniques
Unsaturated Seepage Modeling of Lined Canal Using SEEP/W
Strengthening and Rehabilitation of RC Beams with Openings Using CFRP
A Seasonal Autoregressive Model Of Vancouver Bicycle Traffic Using Weather Variables
Prediction of Compressive Strength of Concrete by Data-Driven Models
Design and Analysis of Roller Compacted Concrete Pavements for Low Volume Roads in India
Predicting the 28 Days Compressive Strength of Concrete Using Artificial Neural Network
Measuring Compressive Strength of Puzzolan Concrete by Ultrasonic Pulse Velocity Method
The addition of fibres into concrete has been found to improve several of its properties like tensile strength, cracking resistance, impact, wear and tear, ductility, fatigue resistance etc. Many types of fibres like steel fibres, carbon fibres, GI fibres, glass fibres, asbestos fibres etc., can be used in fibre reinforced concrete. Waste plastics can also be used as fibres. The disposal of waste plastic is resulting in environmental pollution. Plastic is a non-biodegradable material, and it neither decays nor degenerates in water or in soil. On the other hand it pollutes the water and soil. Plastic if burnt releases many toxic gases, which are very dangerous to health. Such plastics can be used in concrete in the form of fibres to impart some additional desirable qualities to the concrete. This paper presents the results of waste plastic fibre reinforced concrete (WPFRC) produced from recycled aggregates subjected to acid and alkali attack. The different percentages waste plastic fibre used in the experimentation are 0%, 0.5%, 1%, 1.5%, 2%, 2.5% and 3% with an aspect ratio of 50. The results are compared with the waste plastic fibre reinforced concrete (WPFRC) produced from granite aggregates.
This paper uses hourly bicycle counts and weather data that are continuous and year-round to model bicycle traffic in Vancouver, Canada. The study uses seasonal autoregressive integrated moving average (ARIMA) analysis to account for complex serial correlation patterns in the error terms and tests the model against actual bicycle traffic counts. Temperature, rain, rain in the previous 3 hours and humidity are all found to be significant, with clearness found to be marginally significant at the 10% level. The combined effect of rain and its lags is close to 24% of the average hourly bicycle traffic counts, which is larger than the impact of it being a holiday or a Saturday, although the impact of it being a Sunday is still larger. An increase of one degree Celsius from the mean is generally found to increase bicycle traffic counts by 1.65%, so an increase of 10 degrees would increase bicycle traffic by 16.5%. The coefficients on humidity and clearness are small. A decrease in bicycle traffic of only 0.08% is observed per unit change in relative humidity and 0.62% at each of the four transitions between categories of cloudy to perfectly clear skies.
Maintainability is “The ability to achieve the optimum performance throughout the lifespan of a facility within the minimum life cycle cost (LCC)”. As defined in order to achieve optimum performance maintenance tasks to be performed are important. And to do so time of occurrence of the task should be known, which can be obtained from the maintenance cycles of various components. Condition assessment is a procedure that uses an inspection process and analysis procedure for determining the condition of a building or group of buildings. Attempt is being made here to derive maintenance frequency for various building envelope components. 10 buildings from Mumbai were assessed and past data collection was done through complaint registers, checklist and interviews. Data collected was analyzed and overall condition of the components was derived in three levels as good, fair and bad, even maintained components showed sign of distresses and were in all the three categories. Past records and interviewed data was used to generate maintenance frequency which will facilitate for preparing preventive maintenance plans and budgetary 3 provision. As concluded by Dr.-Ing. Carolin Bahr in his research paper “Validation of Maintenance Cycles for Public Buildings” values given in literature regarding the different maintenance packages should be verified and adapted using real data, as the maintenance frequency is subjected to vary from building to building, result presented can be used as guidelines.
Compressive strength development of Portland cement concrete and geopolymer composites is studied together. In case of Portland cement concrete the bonding that takes place is by chemical reactions resulting due to combination of ionic, covalent and van der Waals forces. On the other hand, in fly ash based geopolymer composites bonding is initiated by thermal energy and chemical reaction. In both the cases, it is a constant volume hardening process. The parameters considered in case of geopolymer composites are binder, fluid content, age, curing condition, molarity of alkaline activator solution. It is observed that in both these materials the compressive strength development follow a definite path with respect to fluid-to-binder ratio by the variation of different parameters. A phenomenological model is developed by generalized Abrams' law to assess the strength. The model is further validated by using independent experimental data.
Cracking is one of the frequent causes of complaints in concrete industry. Cracking is known to occur due to fatigue, overloading and damage caused either by loading or environment. The failure of bridges,structures , buildings and dams is due to cracking. This underlines the importance of estimation of crack width as predictor for the health of concrete structures. The results obtained with a POF ( plastic optical fibre) based local (point) sensor that was developed for use with concrete specimens in a three point bend test for in house experiments are reported. The range of CMOD ( Crack mouth opening displacements ) values are established.
The purpose of this research was to study 200 Glass Fibre Self Compacting Concrete (GFSCC) mixtures that consisted of various materials and proportions and then fitted into linear regression models at 28 and 90 days; either into the water/cement (w/c) materials ratio or the water/powder (w/p) ratio. From the study it was learned that the w/p ratio provides us with a stronger indicator of strength by observing the improvement in compressive strength values at 28 and 90 days. This may have been due to the delayed pozzolanic activity through the Fly ash, which is available in powder form . From this result we concluded that the water/powder ratio is a better indicator of strength. In addition to its highly pozzolanic nature, it was noted that Fly ash (available in powder form) assisted in the refinement of the pore structure of the concrete. This in turn also lead to a higher performance of the concrete. Water demand of self compacting concrete is high compared to the concrete of same strength of ordinary concrete. This was attributed to the higher fineness of fly ash. Thus, net water-powder ratio in turn affects its relation with compressive strength of concrete. This demands a retrospection of well-known Abram's Water-Cement ratio relationship. With this view as part of an ongoing research program, an investigation was taken up to study the relationship between water-powder ratio and compressive strength of glass fibre self compacting concrete using alkali-resistant glass fibres.