Use of Ust'Kyakhta quartz-sericite shale in production of ceramic sanitary ware and acidproof goods

1967 ◽  
Vol 24 (6) ◽  
pp. 327-329 ◽  
Author(s):  
M. K. Gal'perin ◽  
V. F. Pavlov ◽  
T. N. Aleinikova
2019 ◽  
Vol 11 (6) ◽  
pp. 1782 ◽  
Author(s):  
Jacek Szulej ◽  
Paweł Ogrodnik ◽  
Beata Klimek

The article presents the results of research on the use of ceramic ware waste as aggregate in concrete production. Four concrete mixtures with aluminous cement were prepared, each with a different admixture of clinoptilolite. The only used aggregate was crushed waste ceramic sanitary ware obtained from a Polish sanitary fixture production plant. As part of the studies, a compressive test of cubic samples at different curing times ranging from 7 to 90 days was performed. Prior to the preparation of the samples, a sieve analysis and an elemental analysis of the obtained aggregate were conducted. In the framework of the testing, the bimodal distribution of clinoptilolite grains was determined, as well as its chemical composition. The conducted compressive tests demonstrated high strength of concrete containing ceramic aggregate and aluminous cement with an addition of clinoptilolite. In order to determine the impact that adding zeolite exerts on the phase composition and the structure of concrete samples, an analysis of the phase composition (XRD) and scanning electron microscopy examination (SEM) were performed. Furthermore, tests of abrasion, water penetration under pressure and frost resistance were conducted, determining particular properties of the designed mixtures. The abrasion tests have confirmed that the mixtures are highly abrasion-resistant and can be used as a topcoat concrete layer. The conducted tests of selected properties have confirmed the possibility of using waste ceramic cullet and a mineral addition of clinoptilolite in concrete production.


1971 ◽  
Vol 28 (1) ◽  
pp. 50-52 ◽  
Author(s):  
M. K. Gal'perina ◽  
T. N. Alein:kova ◽  
Z. N. Safronova

2016 ◽  
Vol 9 (3) ◽  
pp. 612 ◽  
Author(s):  
Umamaheswari S ◽  
Jayasree Krishnan

Purpose: Although retention of employees has become hot topic in this career turbulent era, practically no empirical research is carried out in the fast growing ceramic sector till now and this research fills the gap in the literature. The literatures surveys reported that organization commitment is an important determinant of retention and work environment, supervisor support and training and development are the most relevant antecedents increasing commitment towards organization. This paper examines the impact of the above factors over organization commitment and explores the effects of organization commitment on retention, and verifies the mediating effect of organization commitment on the relationship between proposed factors and retention.Design/methodology/approach: A survey was completed by 416 employees working in five ceramic sanitary ware factories located at different places in India. Questionnaire consisting of items adopted from previous researches were used to collect data. The selection of respondents was based on the simple random sampling.Findings: Findings reveals that organization commitment influences retention and all the above factors enhances it. Moreover organization commitment partially mediates the relationship between proposed factors and retention. However multiple regression analysis indicated that training and development did not have any notable   influence on retention.Limitations: This study was conducted in a particular country and also in a particular sector of manufacturing industry, which limits generalization .Possibility of bias towards their organization and assumption that respondents know about their organization are other limitations.Implications: This paper offers recommendations to HR(Human resource) managers that they should extend their support to work environment, supervisor support and training and development in order to generate better relationship with employees and to reduce their likelihood of leaving the company.Originality/value: This article makes significant contribution to most turnover prone Indian environment, highlighting the important factors to be given priority for employee’s retention.


2019 ◽  
Vol 4 (8) ◽  
pp. 66-79
Author(s):  
KAAN CANDURAN ◽  
MUSTAFA URAL

2006 ◽  
Vol 63 (7-8) ◽  
pp. 259-261 ◽  
Author(s):  
I. V. Pishch ◽  
Yu. A. Klimosh ◽  
E. I. Gapanovich

2019 ◽  
Vol 55 (4) ◽  
pp. 1153-1160
Author(s):  
Pakawadee Sirilar ◽  
Nakorn Srisukhumbowornchai ◽  
Purit Thanakijkasem ◽  
Somnuk Sirisoonthorn ◽  
Gernot Klein

2019 ◽  
Vol 24 (2) ◽  
Author(s):  
Diego Henrique de Almeida ◽  
Rodolfo Henrique Freitas Grillo ◽  
Sylma Carvalho Maestrelli ◽  
Carolina Del Roveri

ABSTRACT In concrete manufacture, cement (Portland type is the most used), water and aggregates (classified into coarse and fine) are used. With the use of several raw materials the generation of waste is inevitable, both in construction and in other sectors, such as the industries producing ceramic materials. Among the types of waste from such industries, can be mentioned the ceramic scrap (from the sanitary ware industry). According to the above, the aim of this research was to study the addition of ceramic scrap as a coarse aggregate in different proportions in the concrete formulation. In order to do this, was select wastes from an industry in the south of Minas Gerais (Brazil), and prepare specimens to determine the fresh (slump test, adhesiveness and porosity) and hardened (compression strength) of concrete. Were fabricated five concrete formulations, one reference (RC) and four with ceramic scrap substituted for coarse aggregate in the proportions of 25% (CSC-I), 50% (CSC-II), 75% (CSC-III) and 100% (CSC -IV). Fresh concretes, two formulations did not show adhesiveness (CSC-III and CSC-IV) and two a small water runoff (CSC-I and CSC-II), however, without compromising the concrete’s workability. Regarding the compression strength, the average values presented were very good, including the formulation with 100% ceramic scrap (fc = 47.78 MPa). Another important aspect observed in the rupture modes was the small adhesion between the ceramic scrap and the mortar due to the glazing in the contour of the waste. As for the porosity of the concretes, those with 25%, 75% and 100% of ceramic scrap in their composition presented lower values than the reference concrete.


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