轻质泡沫混凝土课件

,Click to edit Master text styles,Second level,Third level,Fourth level,轻质泡沫混凝土,配制与性能研究,组员：,xxxxxxxxxxxxxx,xxxxxxxxxxxxxxx,xxxxxxxxxxxxxxxx,指导教师：,xxxxxx,轻质泡沫混凝土配制与性能研究组员：xxxxxxxxxxxx,主要内容,一、前言,背景及现状,特性及应用,实验目的,二、实验,原材料,配合比设计,实验过程,性能测试,三、总结,数据处理与分析,结论,主要内容一、前言背景及现状特性及应用实验目的二、实验原材料配,1.1,背景及现状,近年来，由于泡沫混凝土有着,质轻,等各种优点，关于泡沫混凝土的研究正逐渐热门化；,国外发达国家由于研究较早，其技术已比较成熟，应用相当广泛；,国内已经开始研究和应用，但普遍存在着,强度不高,等缺点，一些技术问题也亟待解决。,1.1 背景及现状近年来，由于泡沫混凝土有着质轻等各种优点，,1.2,特性及应用,轻质,保温隔热性,隔音耐火性,抗震性,其他性能,1.2 特性及应用 轻质保温隔热性隔音耐火性 抗震性其他性能,1.2,特性及应用,国外,用作挡土墙,运动场和田径跑道,用作夹芯构件,管线回填,用作复合墙板,屋面边坡,储罐底脚的支撑,贫混凝土填层,其他,国内,泡沫混凝土砌块,轻质隔墙板,补偿地基,现浇屋面泡沫混凝土保温层,回填灌浆,泡沫混凝土在地铁隧道减荷中的应用,1.2 特性及应用国外用作挡土墙国内泡沫混凝土砌块,1.3,试验目的,节能减废保护环境,-,加气混凝土碎粒和泡沫剂；,配制轻质保温隔热混凝土，满足设计要求；,正交设计,-,湿密度、再生轻质粒体积掺量和粉煤灰掺量,1.3 试验目的节能减废保护环境-加气混凝土碎粒和泡沫剂,1.4,设计指标,强度等级：,0.54MPa,工作性：粘聚性和保水性良好，不分层离析泌水，坍泡少,导热系数：小于,0.0650.90W/mK,1.4 设计指标强度等级：0.54MPa,2.1,原材料,水泥,P52.5,；密度,3.10g/cm,3,粉煤灰,级灰；,细度 负压筛,0.045,筛,筛余,8.77%,；需水量比,94.8%,泡沫剂,蛋白质类；发泡倍数,25,ALC,轻集料,干表观密度,725kg/m,3,;,堆,积密度,564 kg/m,3,；饱和面干表观密度,737 kg/m,3,;,堆,积密度,846 kg/m,3,；细度模数,3.54,速凝剂,硫酸铝,：,氟化钠,：,三乙醇胺,：,聚丙烯酰胺,：,水,=30,：,50,：,8,：,6,：,10,2.1 原材料水泥P52.5；密度3.10g/cm3粉煤,2.2,设计过程,配制轻质保温隔热混凝土,泡沫剂改变孔结构，形成封闭孔,轻集料,节能减废保护环境,-,加气混凝土碎粒和泡沫剂,减少原料用量；,正交设计,湿密度、再生轻质粒体积掺量和粉煤灰掺量,2.2 设计过程配制轻质保温隔热混凝土,2.2,设计过程,试拌问题,坍泡太多！,发泡剂：,掺量过多,20g,发泡倍数,1,：,2,速凝剂,加料，水泥未水化，吸水,水流失太快,2.2 设计过程试拌问题坍泡太多！,2.2,设计过程,调整,发泡剂减少到,6g,加水,1,：,25,泡沫加入到,水泥浆,中,速凝剂作为一个因素（,2,组）,模具涂油后擦掉，防坍泡,试件表面破坏,模具底垫薄膜，减少水渗,效果不大,2.2 设计过程调整,2.3,最终配合比（一）,试验编号,湿密度,kg/m,3,水泥,kg/m,3,粉煤灰,kg/m,3,轻质料用量,kg/m,3,泡沫,L,水,kg/m,3,水灰比,1,2,3,4,5,6,7,8,9,450,-,-,600,-,-,750,-,-,400,360,320,360,320,400,320,400,360,0,40,80,0,40,80,0,40,80,0,170,340,170,340,0,340,0,170,1.2,0.9,0.6,1.2,0.9,0.6,1.2,0.9,0.6,200,-,-,180,-,-,160,-,-,0.5,-,-,0.45,-,-,0.4,-,-,2.3 最终配合比（一）试验编号湿密度水泥粉煤灰轻质料用量k,最终配合比（二）,试验号,水泥,kg/m,3,粉煤灰,kg/m,3,轻质料用量,kg/m,3,泡沫,L,水,kg/m,3,水灰比,速凝剂,(%),1,2,3,4,5,6,7,8,9,400,360,320,400,360,320,400,360,320,0,40,80,0,40,80,0,40,80,0,170,340,170,340,0,340,0,170,1.2,0.9,0.6,1.2,0.9,0.6,1.2,0.9,0.6,200,-,-,180,-,-,160,-,-,0.5,-,-,0.45,-,-,0.4,-,-,2,-,-,-,-,-,-,-,-,最终配合比（二）试验号水泥粉煤灰轻质料用量kg/m3泡沫水水,成型工艺,搅拌发泡,制备水泥流态浆体,加泡沫调整湿容重,成型,养护,测试,：,导热系数：,CD-DR3030A,导热系数测定仪,吸声系数：超声波,成型工艺搅拌发泡,轻质泡沫混凝土课件,2.4,实验试样,2.4 实验试样,2.4,试验结果（一）,试验号,湿容量,kg/m,3,干容重,kg/m,3,吸水率,(%),导热系数,w/mk,抗压强度,（,MPa,）,7d,软化系数,k,7d,28d,1,2,3,4,5,6,7,8,9,546,560,660,615,740,660,800,740,710,508,519,592,611,678,598,664,729,677,33.9,32.0,30.8,19.2,34.6,21.1,36.5,15.5,18.1,0.1163,0.1808,0.1557,0.1246,0.1207,0.1660,0.1180,0.1487,0.1146,0.98,0.75,0.93,0.49,1.36,2.20,3.28,1.91,1.22,1.53,1.90,3.57,2.44,3.26,2.66,3.85,3.04,3.06,1.37,1.09,1.43,3.24,0.94,0.58,0.72,0.92,0.95,2.4 试验结果（一）试验号 湿容量 干容重 吸水率 导热系,收缩数据,试验号,3d,（,mm,）,5d,（,mm,）,7d,（,mm,）,14d,（,mm,）,14d,（,mm,）,28d,（,mm,）,1,2,3,4,5,6,7,8,9,0.7090,0.6500,0.6805,0.6690,0.6895,0.6200,0.7550,0.5215,0.8285,0.5365,0.5215,0.6805,0.5870,0.5950,0.5650,0.5155,0.4380,0.7950,0.4190,0.4100,0.6585,0.5200,0.5780,0.4590,0.4985,0.3725,0.7085,0.1175,0.1095,0.5360,0.1220,0.4695,0.2385,0.4290,0.2360,0.5625,0.1850,0.1830,0.5230,0.0970,0.4500,0.2080,0.4110,0.2130,0.5380,0.1710,0.1870,0.5220,0.0960,0.4490,0.2120,0.3860,0.2350,0.5260,收缩数据试验号3d5d7d14d14d28d10.70900,实验结果（二）,试验号,湿容量,(kg/m,3,),干容重,(kg/m,3,),吸水率,(%),吸声,系数,抗压强度,（,MPa,）,7d,28d,1,2,3,4,5,6,7,8,9,520,534,531,610,650,630,690,780,750,430,750,520,589,555,580,608,678,629,10.9,-,19.7,12.3,18.2,8.62,16.2,9.08,14.7,0.0446,0.0816,0.0847,0.0291,0.0457,0.1448,0.0944,0.0888,0.0914,1.22,3.15,2.89,1.42,2.54,1.14,2.89,1.11,1.09,3.06,4.79,4.29,3.86,3.27,2.67,4.59,3.67,4.67,实验结果（二）试验号 湿容量 干容重 吸水率 吸声 抗压强度,3.1,数据处理,极差分析,软化系数,吸声系数,a10,-2,7d,抗压强度,（一）,7d,抗压强度,（二）,A,B,C,D,A,B,C,D,A,B,C,D,A,B,C,D,K1,3.89,5.33,2.87,3.26,21.1,16.8,27.8,18.2,2.66,4.75,5.09,3.56,7.25,5.52,3.46,4.84,K2,4.76,2.95,5.28,2.39,22.0,21.6,20.2,32.1,4.05,4.02,2.46,6.23,5.10,6.80,5.66,7.18,K3,2.59,2.96,3.09,5.59,27.5,32.1,22.5,20.3,6.41,4.35,5.57,3.33,5.09,5.12,8.32,5.42,k1,1.30,1.78,0.96,1.09,7.03,5.60,9.27,6.06,0.89,1.58,1.70,1.19,2.42,1.84,1.15,1.61,k2,1.59,0.98,1.76,0.80,7.32,7.20,6.74,10.7,1.35,1.34,0.82,2.08,1.70,2.27,1.89,2.39,k3,0.86,0.98,1.03,1.86,9.15,10.7,7.49,6.75,2.14,1.45,1.86,1.11,1.70,1.71,2.77,1.81,极差,0.73,0.80,0.80,1.06,2.12,5.10,2.53,4.04,1.25,0.24,1.04,0.97,0.72,0.56,1.62,0.78,最优比,A3,B2,C1,A3,B3,C1,A3,B1,C3,A1,B2,C3,3.1 数据处理极差分析软化系数吸声系数7d抗压强度7d抗,3.1,数据处理,极差分析,吸水率,%,导热系数,w/mk,28d,抗压强度,（一）,28d,抗压强度,（二）,A,B,C,D,A,B,C,D,A,B,C,D,A,B,C,D,K1,96.7,89.6,70.5,86.6,0.453,0.359,0.431,0.352,7.00,7.82,7.23,7.85,12.1,11.51,9.40,11.00,K2,74.9,82.1,69.3,89.6,0.411,0.450,0.420,0.465,8.36,8.20,7.40,8.41,9.80,11.73,13.32,12.05,K3,70.1,70.0,101.9,67.4,0.381,0.436,0.394,0.429,9.95,9.29,10.7,9.05,12.9,11.63,12.15,11.82,k1,32.2,29.9,23.5,28.9,0.151,0.120,0.144,0.117,2.33,2.61,2.41,2.62,4.05,3.84,3.13,3.67,k2,25.0,27.4,23.1,29.9,0.137,0.150,0.140,0.155,2.79,2.73,2.47,2.80,3.27,3.91,4.44,4.02,k3,23.4,23.3,34.0,22.5,0.127,0.145,0.132,0.143,3.32,3.10,3.56,3.02,4.31,3.88,4.05,3.94,极差,8.8,6.6,10.9,7.4,0.024,0.030,0.01,0.04,0.99,0.49,1.15,0.40,1.04,0.07,1.31,0.35,最优比,A3,B3,C2,A3,B1,C3,A3,B3,C3,A1,B