The aim of this study is to determine the effect of strategic management implementations on the institutionalization levels. In this regard a field study has been made over 31 stone quarry enterprises in cement producing sector in Konya by using survey method. In this study, institutionalization levels of the enterprises have been evaluated regarding three dimensions: professionalization, manag...

INTRODUCTION Workers in the quarry industries are exposed to hazards resulting from the inhalation of air borne particulates. The study determined the prevalence of respiratory symptoms and assessed ventilatory functions among quarry workers in Edo state, Nigeria. METHODS Quarry workers (site workers and office workers) were interviewed using structured questionnaire. FEV1, FVC, FEV1/FVC and ...

As part of a study of exposure to and risk from potential emissions of asbestos from the Southdown Quarry (now Cemex), a series of rock core segments representing each of multiple depths were acquired from historical drill core samples of Quarry material provided by the quarry. The samples were then analyzed for the determination of asbestos and related structures. Results are summarized below ...

The scope of this study is to enhance the industry understanding of the sustainable utilization of quarry dust, and to identify any gaps in current knowledge. The term sustainable utilization implies the use of quarry dust to their full potential to meet the needs of the present, while at the same time conserving natural resources and finding ways to minimize the environmental impacts associate...

Scarcity and the high cost of natural river sand due to government restrictions are major problems for construction industry. It was observed that cement quarry dust ratio is higher in concrete mixes compared conventional used highway projects effects influenced by shape, surface & content micro fines dust. In this study, ratios were optimized obtain optimum strength, workability use using ...

Background: Pneumoconiosis occurs almost in entire worldwide. had threatened cement workers. Serologic abnormalities found pneumoconiosis. Surfactant Protein A (SP-A) levels increased silica-exposed may be a helpful biomarker for the early diagnosis of pneumoconiosis, but it has not yet been studied Indonesia.Methods: The design this study was observational with cross-sectional. sampling cement...

This work demonstrates the usage of two new quartz instruments, which are a tiltmeter and an extensometer that we developed lately to measure with high accuracy deformations of structures, volcanoes, tunnels, and ground surface. The stability of an underground quarry, near Paris in France was the subject of the study. The deformation of the quarry under different cases of loading during the pro...

In this research study, environmentally friendly unburnt coal ash (CA) bricks were investigated as an alternative to conventional burnt clay bricks. various physical and mechanical properties of CA investigated. The prepared by using 60% 10% lime weight. these bricks, varying cement contents (5%, 10%, 15%), sand (10% quarry dust (5% 10%) weight used. A forming pressure 29 MPa was applied throug...