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Research On The Solid Treatment Of Industrial Waste And Engineering Application In Yingkon

Posted on:2012-12-24Degree:MasterType:Thesis
Country:ChinaCandidate:L G HouFull Text:PDF
GTID:2131330332483878Subject:Architecture and Civil Engineering
Abstract/Summary:PDF Full Text Request
Industry in from boron ore boric acid, borax etc products production process, some gangue minerals burning-out, together with boron ore crushing and participate in chemical reaction, leave waste residue, commonly known as "boron mud". It's for stread or light brown powder solid, show alkaline, boron mud contains magnesium Oxide, CaO, Oxidation Sodium, Oxidation Boron etc components. Belong to easily soluble substances a certain degree of bond sex, plasticity is better. The sludge of boron is an industrial solid waste, it not only occupy the stockpiling disposal of land, and surely will make the yard nearby soil sulfonate and causes the boron migration transformation, cause environmental pollution, such doing is also a kind of resource waste, Although there are a variety of boron mud comprehensive utilization technology into the development or industrialization phase, if available PengMei p and boron mud production PengMei calcium fatty etc compound fertilizer, but existing boron mud consumption far less than its emissions, and its economic value no better reflected. Therefore, boron mud scientific utilization and research is still an urgent and difficult task, it is necessary to study the development and perfection of boron mud recycling technology, broaden the boron mud in the use of different fields.These papers briefly introduces the composition and boron mud utilization situation at home and abroad, and introduce the developing situation of domestic and foreign soil stabilizer, as well as our country road base course development present situation.This thesis is according to the present situation of soils in yingkou district, with the industrial solid wastes boron mud as the research object, by changing the nature of boron mud original will after curing "boron mud" used in road base course. Mainly expounds the lime solidified soil, two ash stabilized soil, cement solidified soil and soil stabilizer solidified soil of curing mechanism and various solidified soil solidified characteristics. And on the comparison and analysis of the temperature and degree of compaction and various ages on each solidified soil, the unconfined compressive strength of influence.Through a lot of indoor test of lime solidified soil, cement solidified soil, lime stabilized soil, cement with fly with fly solidified soil, curing agent solidified soil, the unconfined compressive strength is studied. Analyze the different asphalt-measuring mixing ratio and ages on the influence of strength, summarizes the intensity index, it is concluded that the relationship between different asphalt-measuring stabilized soil optimal ratio, and curing agent solidified soil strength and other different solidified soil strength of comparison, verifies the curing agent solidified soil superiority. Analysed in joining admixtures fly ash under the condition of the solidified soil strength changes. Admixture of fly ash to join in does not affect the 28d solidified soil in the unconfined compressive strength can effectively improve the solidified soil early strength. In the laboratory, on the basis of cement solidified soil and soil solidified soil freeze-thaw cycle stability, water immersion stability comprehensive system is studiedThe water immersion test a cement and curing agent in solidified soil water stability coefficient were more than 90% above that are curing boron soil water stability of the very well, Besides mixing ratio of 7% curing agent of solidified soil freezing-thawing resisting coefficient is 78%, except solidified soil freezing-thawing resisting coefficients in 80%, show solidified soil are good frost resistance.On the basis of indoor test for specific geological conditions of YingKou development zone experiment sections of site construction.Finally to generalize work done are summarized, further research work is prospected.
Keywords/Search Tags:boron mud, Solidified soil, the unconfined compressive strength, Freeze-thaw cycle, Water immersion test
PDF Full Text Request
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