Research on Self Compacting Concrete: A Futuristic Concrete

Concrete is most widely used in the construction industry and now-a-days Self compaction concrete is used because of its easy flow able properties and reduction in construction time. Self compacting concrete (SSC) is a basic type of concrete that does not required any kind of compaction or vibration. SCC was first developed by Okamura in Japan during the year 1980. This type of concrete flows easily around the reinforcement and into all corners of formwork and also it saves time, labor and energy. Different admixtures are used to produce effective self compacting concrete (SCC). The workability characteristics of SCC will be evaluated by the following tests like Slump Flow, V- Funnel, L-box Test. Many researches were carried out around the world with regards to different applications on properties and mix proportions. This paper includes the literature reviews related to behavior of self compacting concrete also deals with the strength and behavior of self compacting concrete using fibrous materials and mineral admixtures.

Download Full-text

Experiment for the Mix Proportion Design of Green and Self-Compacting C40 Concrete

Advanced Materials Research ◽

10.4028/www.scientific.net/amr.634-638.2680 ◽

2013 ◽

Vol 634-638 ◽

pp. 2680-2683

Author(s):

Sheng Ju Zhang ◽

Xin Gang Wang ◽

Su Rui Wang

Keyword(s):

Construction Industry ◽

Coarse Aggregate ◽

Volume Fraction ◽

Raw Materials ◽

The Self ◽

Mineral Admixtures ◽

Special Significance ◽

Self Compacting Concrete ◽

Green Concrete ◽

Mix Proportion

The self-compacting concrete is playing more and more important role in the construction industry with the advantages of greater mobility, better stability, and excellent character of filling the gap through capacity. There are different raw materials and construction conditions in each region, so, the research and development of the self-compacting concrete has a special significance according to the specific circumstances of each region. In this study, the parameters of the volume of coarse aggregate, mortar volume, the volume fraction of the sand, the mineral admixtures ash and cementatious coefficient were selected and calculated, and the C40 self-compacting green concrete was successfully configured.

Download Full-text

The Influence of the Addition of Fibers on Properties of Self-Compacting Concrete Produced with Recycled Coarse Aggregate

International Journal of Recent Technology and Engineering - 2 ◽

10.35940/ijrte.c5748.098319 ◽

2019 ◽

Vol 8 (3) ◽

pp. 5140-5146

Keyword(s):

Coarse Aggregate ◽

Environmental Issues ◽

Mineral Admixtures ◽

Polypropylene Fibers ◽

Self Compacting Concrete ◽

Fresh State ◽

The World ◽

Comparable Performance ◽

Hardened State ◽

Hardened Properties

All over the world, wide amount of demolishing waste is being generated posing lot of environmental issues. To address these issues, Self-Compacting Concrete (SCC) was made by replacing cement partially with mineral admixtures and NCA with RCA. The fresh and hardened properties for M30 grade of SCC made with NCA and RCA were evaluated. Cement in SCC was recouped partly with 30% Fly Ash, 20% GGBS by weight of the cement. Polypropylene fibers at 0.1% were added to study their influencing nature on the hardened state and fresh state properties of the SCC mix. Four sequences of SCC mixes of M30 were prepared by substituting the NCA with RCA at 25%, 50%, 75% and 100% derived from the dismantled concrete waste of M30 parent grade. SCC produced with the RCA up to 50% and with 0.1% addition of Fibers demonstrated comparable performance as that of SCC with NCA.

Download Full-text

Study on Strength Characteristics of Binary Blend Self Compacting Concrete Using Mineral Admixtures

International Journal of Engineering & Technology ◽

10.14419/ijet.v7i3.12.16038 ◽

2018 ◽

Vol 7 (3.12) ◽

pp. 264

Author(s):

G J. Prasannaa Venkatesh ◽

S S.Vivek ◽

G Dhinakaran

Keyword(s):

Tensile Strength ◽

Compressive Strength ◽

Rheological Properties ◽

Mineral Admixtures ◽

Self Compacting Concrete ◽

Binary Blend ◽

Split Tensile Strength ◽

Slump Flow ◽

Fresh State ◽

Hardened State

Self-compacting concrete (SCC) is the flowable concrete which tends to fill the formwork under its weight without external compaction. In the present research, 9 different SCC mixes in binary blend along with control SCC and conventional vibrated concrete (CVC) mixes were developed. In binary combination, cement was partially replaced by SF from 7 to 21%, MK from 10 to 30% and GGBS from 20 to 60%. For the above 9 combinations of SCC mixes, the basic rheological properties test namely slump flow and T500 were carried out in the fresh state of SCC. The flowability was achieved using Superplasticizer and viscosity modifying admixture (VMA), added by the percentage of the weight of cement. In hardened state, the compressive strength of the cube specimens and the split tensile strength of the cylinder specimens were carried out.

Download Full-text

KINERJA iLEARNING RAHARJA ASK AND NEWS (IRAN) DALAM MENDUKUNG KEGIATAN TRIDHARMA IDUHELP!

CCIT Journal ◽

10.33050/ccit.v8i1.270 ◽

2014 ◽

Vol 8 (1) ◽

pp. 18-33

Author(s):

Untung Rahardja ◽

Meta Amalya Dewi ◽

Fitri Lisnawati

Keyword(s):

Information Technology ◽

System Performance ◽

Communication Media ◽

Related Method ◽

Literature Reviews ◽

The World ◽

Information And Communication ◽

System Requirements ◽

Three Stages ◽

Care System

Advances in information technology and communications which we achieve now actually been recognized and felt in the world of education in general. Currently College Prog implement a Tridharma terms Tridharma iDuHelp!. Tridharma is one of the basic responsibilities that students must be developed simultaneously and together. In this Tridharma still there are problems in the system iDuHelp! service. So IRAN (iLearning Prog Ask and News) in collaboration with iDuHelp! in providing answers and information needed by the student. In its application in Tridharma iDuHelp! IRAN There is a related method in it, such as iLearning methods that are currently being developed. With iLearning method can facilitate conduct research in detail, accurately, and clearly by using mindmapping. Besides the method of analysis is also done with three stages namely the identification of the problem, identifying needs, and identifying system requirements. In this study using 4 literature reviews that can be used as references in preparing this paper. In this article explained about the problems that arise and solving problems in accurately using the flow Flowchart. In the implementation of the prototype shown iDuHelp! As well as the performance of Iran. So the end result of the study is a system performance to information and communication media of Iran can maximize iDuHelp! care system It is widely integrated in a university.

Download Full-text

The Impact of COVID-19 Quarantine on Children‘s Behaviors and Language

International Journal of Research in Pharmaceutical Sciences ◽

10.26452/ijrps.v11ispl1.3085 ◽

2020 ◽

Vol 11 (SPL1) ◽

pp. 796-806

Author(s):

Sana M Kamal ◽

Ali Al-Samydai ◽

Rudaina Othman Yousif ◽

Talal Aburjai

Keyword(s):

Social Relations ◽

Child Psychology ◽

Simple Random Sample ◽

Community Pharmacies ◽

The World ◽

Female Children ◽

And Behavior ◽

The Impact ◽

Pharmaceutical Interventions

COVID-19 pandemic has spread across the world, which considered a relative of the severe acute respiratory syndrome (SARS), with possibility of transmission from animals to human and effect each of health and economic. Several preventative strategies and non-pharmaceutical interventions have been used to slow down the spread of COVID-19. The questionnaire contained 36 questions regarding the impact of COVID-19 quarantine on children`s behaviors and language have been distributed online (Google form). Data collected after asking parents about their children behavior during quarantine, among the survey completers (n=469), 42.3% were female children, and 57.7 were male children. Results showed that quarantine has an impact on children`s behaviors and language, where stress and isolationism has a higher effect, while social relations had no impact. The majority of the respondents (75.0%) had confidence that community pharmacies can play an important role in helping families in protection their children`s behaviors and language as they made the highest contact with pharmacists during quarantine. One of the main recommendations that could be applied to help parents protection and improvement their children`s behaviors and language in quarantine condition base on simple random sample opinion is increasing the role of community pharmacies inpatient counseling and especially towards children after giving courses to pharmacists in child psychology and behavior. This could be helpful to family to protect their children, from any changing in them behaviors and language in such conditions in the future if the world reface such the same problem.

Download Full-text

The Use of fNIRS for Unique Contributions to Social and Affective Neuroscience

10.31234/osf.io/kygbm ◽

2019 ◽

Author(s):

Shannon Burns ◽

Matthew D. Lieberman

Keyword(s):

Infrared Spectroscopy ◽

Social Interaction ◽

Near Infrared Spectroscopy ◽

Near Infrared ◽

Affective Neuroscience ◽

Functional Near Infrared Spectroscopy ◽

Psychological Experience ◽

The World ◽

And Behavior ◽

Meaningful Interaction

Social and affective neuroscience studies the neurophysiological underpinnings of psychological experience and behavior as it relates to the world around us. Yet, most neuroimaging methods require the removal of participants from their rich environment and the restriction of meaningful interaction with stimuli. In this Tools of the Trade article, we explain functional near infrared spectroscopy (fNIRS) as a neuroimaging method that can address these concerns. First, we provide an overview of how fNIRS works and how it compares to other neuroimaging methods common in social and affective neuroscience. Next, we describe fNIRS research that highlights its usefulness to the field – when rich stimuli engagement or environment embedding is needed, studies of social interaction, and examples of how it can help the field become more diverse and generalizable across participant populations. Lastly, this article describes how to use fNIRS for neuroimaging research with points of advice that are particularly relevant to social and affective neuroscience studies.

Download Full-text

To the discussion about the modern world order

Diplomatic Service ◽

10.33920/vne-01-2003-05 ◽

2020 ◽

pp. 35-41

Author(s):

A. Mustafabeyli

Keyword(s):

Soviet Union ◽

Intergovernmental Relations ◽

World System ◽

Main Tool ◽

World Order ◽

Modern World ◽

The Soviet Union ◽

The World ◽

And Behavior ◽

Second World

In many political researches there if a conclusion that the world system which was founded after the Second world war is destroyed of chaos. But the world system couldn`t work while the two opposite systems — socialist and capitalist were in hard confrontation. After collapse of the Soviet Union and the European socialist community the nature of intergovernmental relations and behavior of the international community did not change. The power always was and still is the main tool of international communication.

Download Full-text