本文選題：硅酸鋰 + 混凝土　； 參考：《稀有金屬材料與工程》2016年S1期

【摘要】：通過制備不同配比的硅酸鋰基復(fù)合溶膠在不同齡期的砂漿塊表面滲透固化后,對(duì)表面回彈值、滲水性進(jìn)行了研究,并對(duì)滲透固化前后的表面微觀形貌進(jìn)行了觀察。結(jié)果表明:復(fù)合溶膠對(duì)砂漿表面微孔隙進(jìn)行了填充,形成致密的微觀結(jié)構(gòu),提高了表面回彈值及并降低了表面滲水性。滲透固化56d后,養(yǎng)護(hù)28d的砂漿表面回彈值高于對(duì)應(yīng)養(yǎng)護(hù)3d的砂漿。隨著復(fù)合溶膠中的硅酸鈉含量增加,表面回彈值先上升后下降,但是滲水量會(huì)隨之增加,耐水性降低。加入質(zhì)量分?jǐn)?shù)15%,25%硅酸鈉的復(fù)合溶膠綜合性能較好。
[Abstract]:The surface springback value and water permeability of the lithium silicate composite sol with different proportions were studied and the surface microstructure was observed before and after the osmotic solidification. The results showed that the composite sol filled the microporous surface of the mortar and formed a compact microstructure. The surface resilience of the surface is increased and the surface water permeability is reduced. After the osmosis of 56d, the rebound value of the mortar surface for curing 28d is higher than that of the mortar corresponding to the curing 3D. With the increase of sodium silicate content in the composite sol, the rebound value of the surface rises first and then decreases, but the water permeability will increase and the water resistance decreases. The mass fraction of sodium silicate will be added to 15%, 25% sodium silicate. The composite sol has better comprehensive properties.

【作者單位】： 浙江大學(xué);浙江加州國(guó)際納米技術(shù)研究院;
【基金】：國(guó)家科技支撐計(jì)劃(2013BAL01B01;2013BAJ10B05)
【分類號(hào)】：TU528

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本文編號(hào)：1861165