[1]袁宇興,湯裕,鄭章宏,等.粉煤灰-泥基地質聚合物復合泡沫材料的研制[J].中國材料進展,2018,(02):036-40.[doi:10.7502/j.issn.1674-3962.2018.02.08]
YUAN Yuxing,TANG Yu,ZHENG Zhanghong,et al.Study of Geopolymer Foamed Composite Based on Cement and Fly Ash[J].MATERIALS CHINA,2018,(02):036-40.[doi:10.7502/j.issn.1674-3962.2018.02.08]
點擊復制
粉煤灰-泥基地質聚合物復合泡沫材料的研制(
)
中國材料進展[ISSN:1674-3962/CN:61-1473/TG]
- 卷:
-
- 期數:
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2018年第02期
- 頁碼:
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036-40
- 欄目:
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研究報告
- 出版日期:
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2018-02-28
文章信息/Info
- Title:
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Study of Geopolymer Foamed Composite Based on Cement and Fly Ash
- 作者:
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袁宇興; 湯裕; 鄭章宏; 盧安賢
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中南大學材料科學與工程學院
- Author(s):
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YUAN Yuxing; TANG Yu; ZHENG Zhanghong; LU Anxian
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School of Materials Science and Engineering, Central South University, Changsha 410083, China
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- 關鍵詞:
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粉煤灰; 水泥; 強度; 地質聚合物; 復合泡沫材料
- Keywords:
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fly ash; cement; strength; geopolymer; foamed composite
- DOI:
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10.7502/j.issn.1674-3962.2018.02.08
- 文獻標志碼:
-
A
- 摘要:
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建筑物節能是當前世界范圍的重大課題，無機泡沫材料因具有隔熱、保溫、隔聲、防火功能而成為節能材料領域的主要發展方向。以工業廢渣粉煤灰部分取代硅酸鹽水泥，研究了粉煤灰水泥基地質聚合物復合泡沫材料的制備技術，考察了水灰比、發泡劑、聚羧酸減水劑、堿復合激發劑對泡沫材料成型、密度及強度的影響。以H2O2為發泡劑，十二烷基硫酸鈉（sodium dodecyl sulfate，SDS）和羥乙基纖維素（hydroxyethyl cellulose，HEC）為復合穩泡劑，聚羧酸為減水劑，單獨將Na2SiO3作為激發劑或將KOH/Na2SiO3作為復合激發劑，成功制得密度約0.80 g/cm3、抗壓強度約2 MPa的粉煤灰水泥基地質聚合物泡沫材料，探討了地質聚合物結構的形成及其增強機制，為提高不燒泡沫水泥的強度與使用可靠性提供了一條新的技術途徑。
- Abstract:
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Buildings energy conservation is an important issue in the current world. The inorganic foam material has become one of main developing directions in the field of energy engineering due to its multifunctions such as thermal insulation, sound insulation and fire prevention. The preparation technology of geopolymer foamed composite was studied by introducing industrial waste residue fly ash into Portland cement. The influences of water cement ratio, foaming agent, polycarboxylate superplasticizer and alkali compound excitation agent on the forming, density and strength of cement foam were explored. The geopolymer foamed composite with density of about 0.8 g/cm3 and compressive strength of 2 MPa has been prepared successfully by using fly ash and cement as main raw materials, H2O2 as foaming agent, polycarboxylate as superplasticizer, sodium dodecyl sulfate (SDS) and hydroxyethyl cellulose (HEC) as composite foam stabilizer, Na2SiO3 or KOH/Na2SiO3 as single or compound activator, respectively. The formation and enhancement mechanism of geopolymer structure were discussed. The research provides a new technical way for increasing the strength and operational reliability of conventional cement foam materials prepared at room temperature.
更新日期/Last Update:
2018-03-13