混凝土与水泥制品
混凝土與水泥製品
혼응토여수니제품
CHINA CONCRETE AND CEMENT PRODUCTS
2015年
6期
75-78
,共4页
聚氨酯%蒸压加气混凝土%力学性能%吸水率%抗冻性能
聚氨酯%蒸壓加氣混凝土%力學性能%吸水率%抗凍性能
취안지%증압가기혼응토%역학성능%흡수솔%항동성능
Polyurethane%Autoclaved aerated concrete%Mechanical properties%Water absorption%Frost resistance
通过对聚氨酯蒸压加气混凝土性能的测试,研究了聚氨酯掺量对蒸压加气混凝土比强度、吸水率、抗冻性的影响。并利用X射线衍射和扫描电镜等分析方法分析了不同聚氨酯掺量下的蒸压加气混凝土的水化产物和结构特点。研究发现：聚氨酯能提高蒸压加气混凝土的比强度；聚氨酯的掺量在6%左右,比强度有显著提高；聚氨酯掺量在6%左右对抗冻性有显著改善,15次冻融循环后的质量损失率和强度损失率分别为3.249%和16.43%；水化产物以托勃莫来石和C- S- H为主；加入聚氨酯后没有引起蒸压加气混凝土表观密度的明显增加。
通過對聚氨酯蒸壓加氣混凝土性能的測試,研究瞭聚氨酯摻量對蒸壓加氣混凝土比彊度、吸水率、抗凍性的影響。併利用X射線衍射和掃描電鏡等分析方法分析瞭不同聚氨酯摻量下的蒸壓加氣混凝土的水化產物和結構特點。研究髮現：聚氨酯能提高蒸壓加氣混凝土的比彊度；聚氨酯的摻量在6%左右,比彊度有顯著提高；聚氨酯摻量在6%左右對抗凍性有顯著改善,15次凍融循環後的質量損失率和彊度損失率分彆為3.249%和16.43%；水化產物以託勃莫來石和C- S- H為主；加入聚氨酯後沒有引起蒸壓加氣混凝土錶觀密度的明顯增加。
통과대취안지증압가기혼응토성능적측시,연구료취안지참량대증압가기혼응토비강도、흡수솔、항동성적영향。병이용X사선연사화소묘전경등분석방법분석료불동취안지참량하적증압가기혼응토적수화산물화결구특점。연구발현：취안지능제고증압가기혼응토적비강도；취안지적참량재6%좌우,비강도유현저제고；취안지참량재6%좌우대항동성유현저개선,15차동융순배후적질량손실솔화강도손실솔분별위3.249%화16.43%；수화산물이탁발막래석화C- S- H위주；가입취안지후몰유인기증압가기혼응토표관밀도적명현증가。
Through the physical properties test of polyurethane autoclaved aerated concrete, the influence of different polyurethane content on strength, water absorption, frost resistance of autoclaved aerated concrete is studied. The hydration products and structural characters of autoclaved aerated concrete with different content are analyzed by XRD and SEM. The experimental results show that polyurethane can enhance the strength of autoclaved aerated concrete, and the strength is enhanced obviously when the polyurethane content is 6%; the frost resistance is improved obviously when the polyurethane content is 6%, and the mass loss rate and strength loss rate after 15 times freezing-thawing cycles are 3.249% and 16.43% respectively; the hydration products mainly contain tobermorite and C-S-H; the apparent density of samples are not increasing obviously when polyurethane is used.
