The General Properties and Applications of Ceramic Materials

2012 ◽  
Vol 174-177 ◽  
pp. 215-218
Author(s):  
Peng Wang

There are two groups of ceramics, traditional and modern ones. Brick, cement tile, and glass are traditional ceramics. They are inorganic non-metallic materials with high melting points, high strength, good strength, and excellent oxidation resistance. Construction industry mainly depends on them. However, traditional ceramics are brittle, low strength, low resistance. Compared with traditional ones, modern ceramics are magnitude finer, more homogeneous, and less porous. They include alumina, silicon nitride, silicon carbide, and boron carbide. They can be applied to building materials, components, and aerospace. Therefore, modern ceramics have stronger adaptability to modern society. Ceramic engineers need in-depth research on design and application modern ceramics.

1966 ◽  
Vol 70 (668) ◽  
pp. 796-801
Author(s):  
J. Morley

We want structural materials to be as strong as possible, as light as possible and as stiff as possible. For all practical applications they must be tough or resilient. We might also want them to be of use at high temperatures, to have hard surfaces, to be resistant to corrosion and to be cheap and easy to fabricate.With all orthodox structural metals strength and stiffness are roughly in proportion to the density of the material. There is therefore not a great deal of difference between them on the basis of specific strength and specific stiffness. This is illustrated in Table I.There are a number of ceramic substances such as silicon carbide, aluminium oxide, beryllium oxide, boron and carbon which have very high elastic modulus values coupled with low densities and high melting points.


2016 ◽  
Vol 2016 ◽  
pp. 1-9 ◽  
Author(s):  
João de Lassio ◽  
Josué França ◽  
Kárida Espirito Santo ◽  
Assed Haddad

The construction industry is increasingly concerned with improving the social, economic, and environmental indicators of sustainability. More than ever, the growing demand for construction materials reflects increased consumption of raw materials and energy, particularly during the phases of extraction, processing, and transportation of materials. This work aims to help decision-makers and to promote life cycle thinking in the construction industry. For this purpose, the life cycle assessment (LCA) methodology was chosen to analyze the environmental impacts of building materials used in the construction of a residence project in São Gonçalo, Rio de Janeiro, Brazil. The LCA methodology, based on ISO 14040 and ISO 14044 guidelines, is applied with available databases and the SimaPro program. As a result, this work shows that there is a substantial waste of nonrenewable energy, increasing global warming and harm to human health in this type of construction. This study also points out that, for this type of Brazilian construction, ceramic materials account for a high percentage of the mass of a total building and are thus responsible for the majority of environmental impacts.


Author(s):  
Tushant Gupta

Abstract: The most widely used man-made materials in the construction industry are concrete. It is a combination of cemeteries, water, compounds and various types of admixtures to a certain extent. New concrete has plastic properties, which means that before casting it it behaves like plastic but over time, it becomes harder as rock. These hardening structures occur due to the chemical reaction between water and cement, it hardens over a long period of time. From the last century onward, the strength of the RCC structures was largely based on the round steel bars, which were readily available in the market. Over time, these items have also changed in appearance, structure, and power. For example, Pozzolana cement is used in place of conventional cement and TMT bars are applied in place of stainless steel. Energy testing methods are based on Indian standards. Test equipment provides complete results after examination of cubes, cylinders and beams, which are inserted and stored in water for treatment for 28 days continuously. Concrete structures, either in the 1970s or later made of high-strength steel-reinforced steel, have replaced concrete structures and structures with various additives in cement and admixtures with their acceleration or deceleration capacity. Now, instead of steel bars, steel fibers, polypropylene, natural polymers etc. are used. The reasons for the demands are many, but as a building engineer, we have to think hard and architecture by using building materials. In anticipation of long-term sustainability, we need to be able to meet needs.


2002 ◽  
Vol 31 (3) ◽  
pp. 205-217 ◽  
Author(s):  
Fred Isley

A niche in the textile industry provides high strength, high modulus textile fabrics to the construction industry as a potential replacement for more traditional building materials such as wood, concrete, masonry, and steel. The mechanical properties of fabrics made of aramid, carbon and glass fibers lend themselves to the needs of the design engineer by providing high strength to weight, high stiffness to weight and extreme flexibility in use and design. Combined with cross-linking resins systems to form a composite, the fabrics are being widely accepted by the civil engineers serving the construction trades Thousands of structures around the world have been repaired, retrofitted or built of such fabrics in the past 10 years.


2018 ◽  
Vol 7 (2.12) ◽  
pp. 443
Author(s):  
S Dhanasekar ◽  
S Vinothraj ◽  
P T Ravichandran ◽  
A Aravindan

Growth in construction industry is linked to the growth of infrastructure sector and the building industry.  Construction industry has been growing @ 8-10% per annum and is likely to maintain the same in year to come. Concrete is widely used as a construction material due to inherent advantages. Booming economic growth led to indiscriminate and unregulated mining of river sand for construction which resulted in erosion of river bank and damage to bio-diversity. The demand for river sand is only expected to grow as the demand for housing and infrastructure is ever increasing. Hence, there is a pertinent need to look for alternate materials to river sand.This study explores use of ceramic tile waste as an optionto the replacement of river Sand in terms of suitability, acceptability, and viability. In this study the ceramic tile waste is being used to replace the conventional sand i.e. fine aggregate (FA). The ceramic fine aggregate (CFA) are used in concrete by replacing FA by 10%, 20%, 24%, 28%, 30% and 40%. In order to compare the results of conventional concrete (CC) with CFA concrete a concrete design mix of M50 is produced with various proportions of CFA material. Due to the good bonding nature of ceramic materials with cement it increases the strength of the concrete with respect to the increase of CFA material. The durability properties of concrete also seems to be performed well because, the CFA materials are consist of good chemical resistance nature. From the study it is found that the percentage of replacement for FA with CFA material is 20%, within which the performance of CFA concrete is better and all the results are attained within the design limit and it help to solve the disposal problem to the environment.  


2021 ◽  
Vol 1 (10 (109)) ◽  
pp. 14-22
Author(s):  
Larysa Spasonova ◽  
Іrіna Subota ◽  
Аnastasia Sholom

Based on the modern ideas about environmental protection, this paper reports a study into the utilization of water-treated waste from heavy metals (using copper(II) compounds as an example) for the manufacture of ceramic building materials. The examined clay minerals from local deposits and the optimal conditions for their heat treatment (at 1,100 °C) have been proposed for the sorption removal of pollutants of inorganic origin from wastewater. The use of wastewater after its treatment makes it possible to address several tasks at the same time: to protect the environment from pollution by technological wastewater, as well as to reuse wastewater in order to resolve the issue of water scarcity. Ceramic building materials were manufactured based on water purification waste (in the amount of 5 %) and clay raw materials. Their structural-mechanical and physicochemical characteristics have been comprehensively studied. Sintering processes begin at lower temperatures, which is why, with an increase in the annealing temperature to 1,000 °C and higher, their strength rapidly decreases. In the temperature range of 600‒1,100 °C, there are possibilities to apply ceramic technology to immobilize heavy metals in ceramic matrices. The prospect of utilizing water purification waste in the technological process of manufacturing inorganic ceramic materials has been shown. The safety of the building materials, manufactured by leaching pollutants from the ceramic samples using various aggressive environments (leaching to 6.4 %, 0.083 mg·cm2/day) has been investigated. The high strength and degree of the copper ion fixation in the structure of polymineral clay have been confirmed while secondary environmental pollution is almost absent


2012 ◽  
Vol 576 ◽  
pp. 539-542
Author(s):  
Mohamed Konneh

High hardness, chemical stability, attractive high temperature wear resistance, low density and strength at elevated temperature are the advantages of ceramics over other materials. These properties have made a number of components made of hard and brittle materials, typically represented by advanced ceramics gained applications in industrial sectors over the past two decades. Nevertheless the benefits due to the salient features of ceramic materials go along with some difficulties with machining in general because of their high values of hardness and very low fracture toughness as compared to other metallic materials and alloys. This paper presents an experiemntal study on identifying the diamond grit size and grinding condition that produced low surface roughness value, Ra and less micro-fractures on ground silicon carbide work-piece material.


2020 ◽  
Vol 6 (1) ◽  
pp. 39
Author(s):  
Mohd Fisal Ishak ◽  
Kartina Alauddin ◽  
Mohd Shahrol Hafiz Ibrahim

Payment in the Malaysian construction industry has generally been an issue of concern. Late and non-payment problem is endemic in construction and needs to be addressed. The aim of this study is to investigate the issues related to late and non-payment based on the building materials suppliers’ perspective. Questionnaires were distributed to suppliers of building materials in the Klang Valley. Findings from the study shows the main cause of late and non-payment is the paymaster’s poor financial management while the main effect of late and non-payment is problem with the cash flow.  The most recommended possible solution to cope with the issue is for the paymaster to conduct training on financial and cash flow management to the management team in the company.  


1994 ◽  
Vol 43 (489) ◽  
pp. 599-605 ◽  
Author(s):  
Akira YAMAKAWA ◽  
Takehisa YAMAMOTO ◽  
Tomoyuki AWAZU ◽  
Kenji MATSUNUMA ◽  
Takao NISHIOKA

1989 ◽  
Author(s):  
I. A. Aksay ◽  
G. C. Stangle ◽  
D. M. Dabbs ◽  
M. Sarikaya

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