Background: Pneumoconiosis occurs almost all in entire worldwide. had threatened cement workers. Serologic abnormalities found pneumoconiosis. Surfactant Protein D (SP-D) levels increased silica exposed may be useful biomarkers for early diagnosis of pneumoconiosis but it has not yet been studied Indonesia.Method: This is a cross-sectional study and was done by consecutive sampling. The total s...

Digital photography combined with three dimensional models of topography, mining operations and restoration plans can lead to extremely realistic images and animations of the current and future states of a mine or quarry. The amount of work and the time required for the successful modelling of a mine and its restoration plan are surprisingly low nowadays. All these mean that the visual impact o...

This paper reports the properties of two series of flowable self-compacting slurry (SCS). In Series 1, a limestone quarry by-product, fine crushed sand (FCS), and ponded-CCPs were used. For Series 2, standard concrete sand and ponded-CCPs were used. For Series 1, five mixtures and for Series 2, six mixtures of flowable SCS were made. Ponded-CCPs and limestone quarry FCS content of the mixtures ...

Distinguishing the difference between theropod and ornithopod footprints has proved a difficult task due to their similarities. Herein our aim was to produce a method where a skeleton could be more closely matched to actual fossilised footprints. The reconstructed pes of the Australian Megaraptoran Australovenator wintonensis was utilised for this footprint reconstruction. It was 3-D printed in...

Quarry 9 is among the richest microvertebrate localities in the Morrison Formation, having thus far produced the remains of dozens of Late Jurassic taxa. Because this lenticular claystone deposit records such a high diversity of contemporaneous species, it provides an exceptionally detailed view of their paleoecology and local paleoenvironment. In this study, we reexamined the entire Quarry 9 c...

Earthquake mainly produces Pand Swave at the point of occurrence. Mining site that mines the geological material from earth often makes the quarry blasts on the surface of earth to accelerate the mining process instead of drilling. This mining blast also causes the same wave as the earthquake. It is very difficult to differentiate between two of them as the characteristics of waves produced by ...

INTRODUCTION Although quarry operations have high economic significance, the effects they cause to the workers in terms of excessive noise production cannot be overlooked. This cross-sectional study assessed the extent of noise exposure and its influence on hearing capabilities among quarry workers in Ashanti region. METHODS The study involved 400 workers randomly selected from five quarries ...

BACKGROUND Respiratory problem is one of the major health hazards in dust-exposed workers; it is a major cause of morbidity and mortality all over the world. OBJECTIVE To determine the prevalence of respiratory problems and lung function impairment among quarry workers in Ebonyi State, Nigeria. METHODS Respiratory problems and lung function were studied in 403 quarry workers aged 10-60 year...

Fine waste management from quarry has been commonly the final disposal in mining tailings and as refilling material for landscape recovery areas already exploited. However, different uses of these wastes have studied, highlighting earth constructions because a new economic benefit is generated environmental impact reduced. Moreover, compared to cement constructions, are environmentally friendly...