The effect of partial replacement of cement by unprocessed calcareous fly ash on fresh and hardened properties of self-compacting concrete was investigated.Concrete mixes containing 27.5%, 35%, 42.5%, 50%, 57.5% and 65% of fly ash based on the total weight of binder (cement + fly ash) were tested.All the mixes were designed to have the same volume
Introduction: The term of Mulch, is the German word (Molsh) means the soft, however, not soft, and made of plant debris or synthetic substances.Many positive effects attributed to the use of plastic mulch such as adjusting the temperature in the root environment, conserve moisture, reduce weeds, increase root growth, reduce soil erosion, and soil c
Disentangling the effects of environmental variation and management actions on vegetation condition is increasingly important given increasing efforts to tackle biodiversity loss and the advent of environmental accounting programs.The Mount Lofty Ranges (South Australia) contains temperate ecosystems supporting rich but threatened biodiversity.Usin
With more energy imported by China, the business on construction and operation of multinational oil and gas pipelines is increasing rapidly.The unique political attributes of multinational oil and gas Mains Plugs pipelines are likely to bring about complicated and prominent political risks to the pipelines, which may not only trigger hazardous risk