Investigation of Fresh and Hardened Properties of Self-Compacting Concrete Using Calcite and Fly Ash as Supplementary Cementitious Materials | Chapter 4 | Engineering Research: Perspectives on Recent Advances Vol. 2

Concrete is the second most widely consumed building material in the world because of its beauty, strength and durability. In an era of increased attention to the environmental impact of construction, engineered concrete performs well when compared to other building materials. This study evaluates the use of a green material such as fly ash and calcite as Supplementary Cementitious Material (SCMs) in manufacturing of Self Compacting Concrete (SCC). The main objective of this study is to show the number of ways how the concrete industry can increase its compliance with the demands of sustainable development. Most recent research on SCMs has focused on a few areas: exploring new materials, increasing replacement amounts, developing better test methods, treating or modifying materials, and using additives to improve performance. Experimental investigation to check the feasibility of Fly ash and Calcite combination as SCMs in self compacting Concrete and its effect on workability and Harden Properties is checked. The study concluded that the elimination of vibrating equipment improves environment protection near construction and precast sites where concrete is being placed, reducing the exposure of workers to noise and vibration. In SCC, there is no chance of honeycomb, hence it gives a superior surface finish.

 

Author (s) Details

Swapneel Satone
Civil Engineering Department, K.D.K. College of Engineering, Nagpur- 440009, India.

 

Dhananjay Parbat
Government Polytechnic, Bramhapuri-441206, India.

 

Valsson Varghese
Civil Engineering Department, K.D.K. College of Engineering, Nagpur- 440009, India.

 

Avinash M Badar
Civil Engineering Department, K.D.K. College of Engineering, Nagpur- 440009, India.

 

Dipali P. Jasudkar
Chemistry Department, K.D.K. College of Engineering, Nagpur- 440009, India.

 

Manmohandas Goel
Civil Engineering Department, Visvesvaraya National Institute of Technology, Nagpur- 44010, India.

 

Please see the book here:- https://doi.org/10.9734/bpi/erpra/v2/3834

Study on Decomposition and Transformation of Calcite-1 by Shearing at High Pressure | Chapter 05 | Recent Trends in Chemical and Material Sciences Vol. 5

 Transmission Calcite-1 was gently sheared at high pressure up to 16 GPa parallel to the (101) plane and in the [2-1-1] direction at room temperature, resulting in X-ray diffraction patterns on imaging plates. There were 22 large diffused circles visible. We may say that the produced chemicals are in an amorphous state based on the appearance of the rings. Except for graphite2H, CaO, and CaC2, the patterns revealed that majority of the rings do not relate to calcite-1, but to high-pressure compounds. They were supposed to have formed as a result of the polymorphism's disintegration and transformation. Atmospheric pressure is maintained. Despite the fact that the aforementioned results appear to contradict scientific consensus, the text mentions phenomena that support the findings. A compound decomposes into simple substances and compounds made up of the original complex's constituents when subjected to severe discontinuous dry rubbing. Calcite-I, when sheared at high pressure, not only changed its polymorphism but also broke down into compounds and simple chemicals.

Author(S) Details

Hiroshi Furuichi
Furuichi Laboratory, 400-0001 Wadamachi 2878-1, Kofu, Japan.

View Book:- https://stm.bookpi.org/RTCAMS-V5/article/view/5349