本文選題：CA砂漿 + X射線衍射(XRD)��； 參考：《建筑材料學(xué)報》2017年05期

【摘要】：為計算長期運營環(huán)境下水泥乳化瀝青砂漿(CA砂漿)中瀝青含量并分析其組分變化,對CA砂漿粉末樣品進(jìn)行了X射線衍射(XRD)、熱重(TG)、微商熱重(DTG)和差熱分析(DTA),并對比了空氣和氮氣氛圍中CA砂漿的熱分析曲線.發(fā)現(xiàn)在空氣氛圍中對CA砂漿樣品進(jìn)行熱分析,并根據(jù)熱重(TG)、微商熱重(DTG)和差熱分析(DTA)曲線特征采用二組分劃分法,能夠?qū)崿F(xiàn)瀝青組分相對含量的定性分析;綜合該測試條件下的TG-DTG-DTA和XRD數(shù)據(jù),采用任意內(nèi)標(biāo)法,以CaCO3作為內(nèi)標(biāo)物,能夠快速、簡便地實現(xiàn)對CA砂漿中Ca(OH)2和瀝青含量的定量計算.
[Abstract]:In order to calculate the asphalt content in cement emulsified asphalt mortar (CA mortar) under the long-term operation environment, and analyze its component change, The powder samples of CA mortar were studied by X-ray diffraction (XRD), thermogravimetric (TGG), differential thermogravimetric analysis (DTAG) and differential thermal analysis (DTA). The thermal analysis curves of CA mortar in air and nitrogen atmosphere were compared. It is found that the qualitative analysis of the relative content of asphalt components can be realized by using the two-component partitioning method according to the thermogravimetric TGG, differential thermogravimetric (DTG) and differential thermal analysis (DTA) curves of CA mortar samples in air atmosphere. The quantitative calculation of Ca(OH)2 and asphalt content in CA mortar can be realized quickly and easily by synthesizing the TG-DTG-DTA and XRD data under this test condition, using arbitrary internal standard method and CaCO3 as internal standard.
【作者單位】： 西南交通大學(xué)高速鐵路線路工程教育部重點實驗室;西南交通大學(xué)土木工程學(xué)院;
【基金】：“十三五”國家重點研發(fā)計劃項目(2016YFB0303603-4) 高鐵聯(lián)合基金資助項目(U1334203,U1234201) 國家杰出青年科學(xué)基金資助項目(51425804)
【分類號】：U414

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本文編號：1871571