Background: Cement production is associated with heavy metal emissions and environmental pollution by cement dust. The degree of contamination of drinking water sources by major and trace elements present in cement dust generated by united cement factory (UNICEM) is still uncertain. This study estimated the element content of ground and surface water samples (hand-dug wells, boreholes and strea...

In spite of broad improvements in construction technology, cement is still stayed as binding material for construction purposes. Cement industries are the main sources for the contribution of carbon dioxide (co2) into the atmosphere. So, there is a need to use new materials as binders (green binders) in substitute for cement, which leads to reducing the production of cement. In this study, fly ...

Since the publication of our paper entitled "A Study of Blasting Recorded in Southern California ''1 one further large blast has been set off in this region, and others moderate, to comparatively small, in magnitude. Two of these especially have afforded opportunity for further direct investigation. Others have yielded additional information. 1. On the afternoon of August 4, 1931, a blast consi...

Case 203.-Born in 1911. Started work as a carrier in 1924 for a firm loading lime, cement, tea, and sugar. In 1926 moved to work as storeman to a builder's merchant. Again exposed to lime and cement dust. From 1936 to 1964 worked principally as a plasterer. The histology of this tumour is not known. He never took snuff. Case 204.-Born in 1898. After working as a packman's boy (1910-12) and an a...

background: cement production is associated with heavy metal emissions and environmental pollution by cement dust. the degree of contamination of drinking water sources by major and trace elements present in cement dust generated by united cement factory (unicem) is still uncertain. this study estimated the element content of ground and surface water samples (hand-dug wells, boreholes and strea...

Abstract Thecemententerprisebetheessentialhotspotintendedfornaturalcontamination because it admissions a tremendous measure of energy during the creationas well as deliveries ton CO2which adds to an unnatural weather change. Reducethese impacts, concrete is some degree subbed among blend Silica Fume (SF) and Fly Ash (FA) sand by Quarry Dust (QD) with addition steel fibre. This paper centered on...

Although quarrying is often cited as a potential threat to wetland systems, there is a lack of relevant, quantitative case studies in the literature. The impact of pumped groundwater discharged from a quarry into a wetland area was assessed relative to reference conditions in an adjacent fen wetland that receives only natural runoff. Analysis of vegetation patterns at the quarry wetland site, u...