土木工程材料習(xí)題及解答2011

1、土木工程材料習(xí)題及解答土木工程材料習(xí)題及解答P3519某瀝青路面混合料和細(xì)集料的篩分試驗(yàn)結(jié)果見表某瀝青路面混合料和細(xì)集料的篩分試驗(yàn)結(jié)果見表114.試計(jì)算細(xì)集料的分計(jì)篩余百分率、試計(jì)算細(xì)集料的分計(jì)篩余百分率、累計(jì)篩余百分率和通過百分率，繪制該細(xì)集料的級(jí)配曲線圖，并分析其級(jí)配是否符合設(shè)計(jì)累計(jì)篩余百分率和通過百分率，繪制該細(xì)集料的級(jí)配曲線圖，并分析其級(jí)配是否符合設(shè)計(jì)級(jí)配范圍的要求。計(jì)算該細(xì)集料的細(xì)度模數(shù)，判斷其粗度。級(jí)配范圍的要求。計(jì)算該細(xì)集

2、料的細(xì)度模數(shù)，判斷其粗度。某細(xì)集料的篩分試驗(yàn)結(jié)果表114篩孔尺寸(mm)9.54.752.361.180.60.30.150.075篩底篩余質(zhì)量(g)0131601007550392538設(shè)計(jì)級(jí)配范圍(%)10095~10055~7535~5520~4012~287~185~10答：篩孔尺寸(mm)9.54.752.361.180.60.30.150.075篩底篩余質(zhì)量(g)0131601007550392538分計(jì)篩余百分率02.63

3、22015107.857.6累計(jì)篩余百分率02.634.654.669.679.687.492.4100通過百分率10097.465.445.430.420.412.67.60設(shè)計(jì)級(jí)配范圍(%)10095~10055~7535~5520~4012~287~185~10從上圖可知，該細(xì)集料符合要求。21.36.21006.25)4.876.796.696.546.34(1005)(75.475.415.030.060.018.136.2?

4、???????????????AAAAAAAMf25.42100100)0.16()0.16(5.3515?????AMaax2)計(jì)算碎石在礦質(zhì)混合料中的用量z碎石中占優(yōu)勢(shì)含量粒徑為0.075mm。故計(jì)算碎石用量時(shí)，假設(shè)混合料中0.075mm粒徑全部由碎石組成，即aA(0.075)和aB(0.075)均等于零。將aA(0.075)=0、aB(0.075)=0、aM(0.075)=4%、aC(0.075)=21.5%，代入可得：60.18

5、100100)075.0()075.0(5.214?????AMaaz3)計(jì)算碎石在礦質(zhì)混合料中的用量y將已求得的x=42.25和z=18.60代入得15.39)60.1825.42(100)(100???????zxy4)合成級(jí)配與校核碎石石屑礦粉合成篩孔尺寸級(jí)配范圍26.50000010010019.031.27001.271.2798.7395~10016.035.515.00001516.2783.7375~9013.22711

6、.410011.4127.6872.3262~809.514.76.216.22.4308.6436.3263.6852~724.7515.26.4215.96.22012.6448.9651.0438~582.364.642.251.9419.27.5209.4658.4241.5828~461.1822.78.8908.8967.3132.6920~340.6135.0930.565.6572.9627.0415~270.3124.