نتایج جستجو برای: cement stabilization
تعداد نتایج: 78563 فیلتر نتایج به سال:
Abstract Peat soil is one of the types available in Malaysia, which has a high compressibility and low shear strength. Thus, peat considered inappropriate to support construction site its natural state. Among methods suitable for stabilization using cement. However, quantity cement required quite large made this method not too environmentally friendly due carbon dioxide, CO 2 emission from prod...
Geotechnical engineers, in many cases face with low strength or high swelling potential of clayey soils. Stabilization methods are used to improve the mechanical properties of this type of soils. Lime and cement are the most popular materials used in chemical stabilization of clayey soils. If sulphate exists in the stabilized clayey soil with lime, or if soil is exposed to sulphates, problems s...
Class F fly ash cannot be used alone in soil stabilization applications as it is not selfcementing. An activator such as Portland cement or lime must be added to produce cementitious products often called pozzolan stabilized mixtures. The developed mixture must possess adequate strength and durability, should be easily compacted, and most importantly should be economical and environmentally fri...
OBJECTIVE Vertebrae with lytic metastases have an elevated risk of burst fracture and resultant neurologic compromise. Prophylactic vertebroplasty has the potential to reduce pain and the risk of burst fracture in the metastatic spine. The purpose of this study was to quantify the ability of vertebroplasty to stabilize metastatically involved vertebrae against the risk of burst fracture initiat...
Abstract In this study, the stabilization process is introduced to a clayey expansive soil collected in southern Sweden. The tests examined strength parameters of stabilized by different binders using combination both traditional (cement and lime) alternative materials (slag Merit 5000, fly ash from SCA Lilla Edet coal combustion, ISO certified). practical goal was find binder mixture that opti...
Plugging is well known to be a major cause of instability in industrial cement mills. A simple nonlinear model able to simulate the plugging phenomenon is presented. It is shown how a nonlinear robust controller can be designed in order to fully prevent the mill from plugging.
The ability of calcium aluminate cement (CAC) to encapsulate toxic metals (Pb, Zn and Cu) was assessed under two curing conditions. Changes in the consistency and in the setting time were found upon the addition of the nitrates of the target metals. Both Pb and Cu caused a delay in CAC hydration, while Zn accelerated the stiffening of the mortar. Compressive strengths of the metal-doped mortars...
INTRODUCTION Osteoporotic vertebral compression fractures (OVFs) can be the source of substantial pain and deformity, leading to disability and poor quality of life. In certain instances, percutaneous transpedicular vertebroplasty (PVP) is used in place of nonoperative therapy to treat OVFs. PVP typically consists of passing a 10to 15-gauge cannula percutaneously through each pedicle and inject...
نمودار تعداد نتایج جستجو در هر سال
با کلیک روی نمودار نتایج را به سال انتشار فیلتر کنید