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P. Priyadharshini

Bio: P. Priyadharshini is an academic researcher from VIT University. The author has contributed to research in topics: Compressive strength & Cement. The author has an hindex of 2, co-authored 2 publications receiving 38 citations.

Papers
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Journal Article
TL;DR: In this paper, the authors mainly focused on manufacturing process of light weight aggregates using pelletizer and curing has been done in cold bonded technique and showed that cold bonded fly ash aggregates can be used as an aggregate replacement material in concrete.
Abstract: Many researches have been carried out in the area of fly ash utilization in the past. It mainly concentrated on replacement of cement with fly ash but production of artificial aggregates with fly ash helps in utilizing large volume of ash in concrete. The world is much interested in this part recently due to this large-scale utilization which also reduces environmental pollution and dwindling of natural resources. This paper mainly focuses on manufacturing process of light weight aggregates using pelletizer and curing has been done in cold bonded technique. The properties of these fly ash aggregates have been tested and compared with natural gravel and the study shows that cold bonded fly ash aggregates can be used as an aggregate replacement material in concrete. The strength property and density of concrete made with artificial fly ash aggregates and natural gravel were also studied which confirms that introduction of fly ash aggregates in concrete reduces the compressive strength but meets the required strength to be used as a structural material.

39 citations

Proceedings Article
30 Mar 2012
TL;DR: In this article, the feasibility of usage of coarse aggregate made of fly ash is studied for its restrained shrinkage property in concrete, where concrete mixes are designed for M40 grade by 30, 60 and 100% replacement of natural gravel to fly ash aggregates as coarse aggregates in concrete.
Abstract: Concrete is a mixture of cement, fine and coarse aggregates, in which aggregates occupy the major volume. Also, the strength of concrete varies with the type of aggregate used. In Recent days, the scarcity of aggregates due to the massive development in infrastructure field made the researchers think about an alternate source of concrete materials. Economical and environment friendly way is to consider the usage of industrial waste as a substitute material. Fly ash is already studied in a mammoth level for its potential to be used as a cement replacement material. Here in this study, the feasibility of usage of coarse aggregate made of fly ash is studied for its restrained shrinkage property in concrete. For the purpose of experimentation concrete mixes are designed for M40 grade by 30%, 60% and 100% replacement of natural gravel to fly ash aggregates as coarse aggregates in concrete. Compressive strength, Rise in temperature and plastic shrinkage tests are conducted to study the strength and restrained shrinkage property of concrete using fly ash aggregates and the results are compared with that of concrete with natural gravel.

7 citations

Journal ArticleDOI
TL;DR: In this article , a traffic and delay-aware energy-efficient routing (TADEER) protocol for IoT-based networks is proposed, which assigns delay for transmitting data based on the criticality level of data and traffic rate at the forwarding nodes.
Abstract: The Internet of Things (IoT) is a system of machines, computing devices, electronic equipment, and different sensors. It forms a network, where the transmission of device-related data can be accomplished. The devices in the IoT are connected to each other through wireless links and form ad-hoc networks. In IoT based applications, the lifetime of the communicating nodes is a greater concern. The network lifetime can be maximized by introducing energy efficient data transmission in the network. Therefore, a traffic and delay-aware energy-efficient routing (TADEER) protocol for IoT-based networks are proposed in this work. The proposed technique assigns delay for transmitting data based on the criticality level of data and traffic rate at the forwarding nodes. Fixing delays for data transmission helps to avoid unnecessary transmissions. The route selection process is implemented using an optimization algorithm. A Fuzzy logic (FL) based biogeography-based optimization (BBO) algorithm is presented in this work. Thus, the number of data transmission and energy consumption can be reduced. The performance of the proposed method is evaluated by analyzing transmission delay, network lifetime, and energy consumption. By comparing the simulation results to the existing methods TEAR and ETASA, the simulation results are validated.

Cited by
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Journal ArticleDOI
TL;DR: In this article, the authors investigated the rheological properties of the geopolymer grout in comparison with the cement-based grouts included fly ash and cold bonded fly ash at various dosage rates and water/binder ratios (0.75-1.5).

104 citations

Journal ArticleDOI
TL;DR: The use of cold-bonded aggregate as a potential construction material in concrete production is summarized in this article, where the authors discuss factors influencing manufacturing productivity and the properties of the cold-bounded aggregate, such as pelletizer disc angle and speed, pelletization duration, water content and the types of raw materials and binders used.

65 citations

Journal ArticleDOI
TL;DR: In this article, artificial coarse aggregates are prepared by a cold bonding technique and the waste materials, namely, fly ash and quarry dust, are used for the preparation of the cold bonded artificial aggregate.
Abstract: In this study, artificial coarse aggregates are prepared by a cold bonding technique. The waste materials, namely, fly ash and quarry dust, are used for the preparation of the cold bonded artificial aggregate. Portland cement is used as the binder material. The independent variables considered for the preparation of the artificial aggregate are cement and fly ash contents. The properties of the artificial aggregate are determined and regression models are proposed for predicting these properties. The strength and workability of concrete containing artificial aggregate is determined. The slump loss of concrete containing artificial aggregate is found to be gradual. The concretes with strengths of up to 30 MPa is prepared using artificial aggregates. The study promotes the use of waste material and supports sustainable construction practices.

57 citations

Journal ArticleDOI
TL;DR: In this article, the effect of geopolymerization factors such as Na 2 O content, water content, and curing regime on the properties of the artificial fly ash aggregates was determined through response indices at the age of 14, 28 and 56 days.

55 citations

Journal ArticleDOI
TL;DR: A comprehensive review of the performance of alternative aggregates in concrete is presented in this paper, which focuses on reusing waste materials from the agricultural and industrial sectors to produce alternative coarse aggregates.

43 citations