本文選題：表面處理　切入點(diǎn)：煤矸石混凝土　出處：《安徽理工大學(xué)》2015年碩士論文

【摘要】：煤矸石是在產(chǎn)煤行業(yè)中不可避免的、伴隨產(chǎn)生的一種工業(yè)廢料,并且在我國(guó)煤矸石的產(chǎn)量在逐年增長(zhǎng)。煤矸石對(duì)無(wú)論是對(duì)社會(huì)環(huán)境還是對(duì)生態(tài)環(huán)境都帶來(lái)了嚴(yán)重的負(fù)面影響,如果不加以控制,那么將會(huì)帶來(lái)不可估量的損失。此課題本著以變廢為寶的愿望,如果煤矸石可以代替石子做混凝土骨料,不僅可以解決目前石子材料價(jià)格高且緊缺的問(wèn)題,還且還可以處理大量的工業(yè)廢料,不僅保護(hù)了環(huán)境,而且還帶來(lái)了經(jīng)濟(jì)效益。 文章主要采用以下幾個(gè)思路對(duì)煤矸石集料混凝土進(jìn)行了研究： 1.查閱了大量關(guān)于淮南礦區(qū)煤矸石特性的資料文獻(xiàn),對(duì)煤矸石的化學(xué)組成有了大體地認(rèn)識(shí)。 2.對(duì)淮南礦區(qū)不同地點(diǎn)的煤矸石的部分性質(zhì)進(jìn)行了測(cè)試,并用混凝土強(qiáng)度理論對(duì)其做了評(píng)價(jià)。 3.將煤矸石表面進(jìn)行包裹作為混凝土的粗骨料,制作不同等級(jí)的煤矸石混凝土并測(cè)試其抗壓強(qiáng)度。 4.測(cè)試煤矸石混凝土的膨脹性及其對(duì)鋼筋的銹蝕作用。 文章的研究作為煤矸石的再生利用可能途徑之一,作者通過(guò)以上思路的研究初步得出以下結(jié)論： 1.將煤矸石表面用水泥漿包裹的煤矸石集料混凝土的強(qiáng)度明顯高于表面未做任何處理的煤矸石集料混凝土。 2.通過(guò)對(duì)煤矸石集料混凝土的強(qiáng)度理論分析,發(fā)現(xiàn)其破壞機(jī)理是“弱”包“強(qiáng)”轉(zhuǎn)變?yōu)椤皬?qiáng)”包“弱”,通過(guò)試驗(yàn)發(fā)現(xiàn)煤矸石集料混凝土的適配強(qiáng)度是在C30以下。 3.煤矸石混凝土的強(qiáng)度不會(huì)因?yàn)殡S著齡期的增長(zhǎng)而發(fā)生降低,其長(zhǎng)期強(qiáng)度與普通混凝土基本一致。 4.通過(guò)測(cè)量混凝土膨脹性實(shí)驗(yàn),煤矸石集料膨脹性小于規(guī)定的標(biāo)準(zhǔn)值,為非活性集料。 5.通過(guò)半電池電位法測(cè)量表面處理后的煤矸石混凝土鋼筋銹蝕情況,初步符合要求。
[Abstract]:Coal gangue is inevitable in the coal production industry, accompanied by a kind of industrial waste, and the output of coal gangue is increasing year by year in our country. The coal gangue has brought serious negative influence to both social environment and ecological environment. If it is not controlled, it will bring incalculable losses. This subject is based on the desire to turn waste into treasure. If coal gangue can be used as concrete aggregate instead of stone, it can not only solve the problem of high price and shortage of stone materials at present, And also can deal with a large number of industrial waste, not only protect the environment, but also bring economic benefits. In this paper, the coal gangue aggregate concrete is studied in the following ways:. 1. A large number of documents about the characteristics of coal gangue in Huainan mining area are consulted, and the chemical composition of coal gangue is generally understood. 2. Some properties of coal gangue in Huainan mining area are tested and evaluated with concrete strength theory. 3. The coal gangue surface is wrapped as the coarse aggregate of concrete, and different grade coal gangue concrete is made and its compressive strength is tested. 4. Test the expansibility of coal gangue concrete and its corrosion effect on steel bar. As one of the possible ways of regeneration and utilization of coal gangue, the author draws the following conclusions through the study of the above ideas:. 1. The strength of coal gangue aggregate concrete coated with cement slurry is obviously higher than that of coal gangue aggregate concrete without any treatment on the surface. 2. Based on the theoretical analysis of the strength of coal gangue aggregate concrete, it is found that the failure mechanism of coal gangue aggregate concrete is from "weak" to "strong" to "strong" and "weak", and it is found that the suitable strength of coal gangue aggregate concrete is below C30. 3. The strength of coal gangue concrete does not decrease with the increase of age, and its long-term strength is basically the same as that of ordinary concrete. 4. The expansion of coal gangue aggregate is less than the specified standard value by measuring the expansive property of concrete. 5. The corrosion of steel bar of coal gangue concrete after surface treatment is measured by semi-battery potentiometry, and it is in accordance with the requirements.
【學(xué)位授予單位】：安徽理工大學(xué)
【學(xué)位級(jí)別】：碩士
【學(xué)位授予年份】：2015
【分類號(hào)】：TD849.5;TU528.041

【參考文獻(xiàn)】

相關(guān)期刊論文 前10條

1 楊再富;錢覺(jué)時(shí);唐祖全;梁天宇;;集料-基體協(xié)調(diào)性對(duì)混凝土強(qiáng)度影響的試驗(yàn)研究[J];材料科學(xué)與工藝;2007年01期

2 楊力輝;于少春;;自然煤矸石輕骨料混凝土配合比設(shè)計(jì)[J];遼寧工程技術(shù)大學(xué)學(xué)報(bào)(自然科學(xué)版);2010年S1期

3 李凌;粗集料表面特征對(duì)混凝土強(qiáng)度的影響[J];公路交通技術(shù);2003年04期

4 吳秀峰;周梅;崔正龍;;自燃煤矸石粗集料對(duì)混凝土強(qiáng)度影響的試驗(yàn)研究[J];工業(yè)建筑;2009年03期

5 陳本沛;煤矸石混凝土的強(qiáng)度[J];工業(yè)建筑;1994年07期

6 王子龍;聶治平;單星本;江守恒;朱衛(wèi)中;;減水劑對(duì)復(fù)合水泥混凝土強(qiáng)度影響[J];低溫建筑技術(shù);2013年04期

7 曹建軍,劉永娟,郭廣禮;煤矸石的綜合利用現(xiàn)狀[J];環(huán)境污染治理技術(shù)與設(shè)備;2004年01期

8 劉富玲,閆瑾,趙明;煤矸石混凝土護(hù)筋性能的研究[J];河南科學(xué);2000年02期

9 趙若鵬;;混凝土破壞機(jī)理的研究[J];混凝土與水泥制品;1981年02期

10 趙若鵬;樂(lè)貴平;劉元鶴;;凈漿裹石混凝土的研究[J];混凝土與水泥制品;1985年06期

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