灰?guī)r人工砂石粉含量試驗檢測方法探討
發(fā)布時間:2018-08-03 13:44
【摘要】:為探討因《水工混凝土砂石骨料試驗規(guī)程》修訂更新導(dǎo)致新舊版本試驗規(guī)程所推薦的石粉含量試驗檢測方法變化對試驗檢測結(jié)果的影響,結(jié)合黃登水電站工程實際,開展了不同試驗檢測方法對灰?guī)r人工砂石粉含量檢測結(jié)果的影響程度及規(guī)律試驗研究,試驗共檢測灰?guī)r人工砂石粉含量535組。試驗結(jié)果表明:(1)試驗檢測方法對灰?guī)r人工砂石粉含量檢測結(jié)果影響顯著,且具有一定規(guī)律性;(2)采用"濕篩水洗法"與"顆粒級配干篩法"得到的石粉含量結(jié)果差值和"濕篩水洗法"得到的微粒含量結(jié)果數(shù)據(jù)分布情況基本滿足正態(tài)分布曲線;(3)采用2種試驗方法檢測的常態(tài)砂和碾壓砂石粉含量結(jié)果差值分別為5%~9%和4%~8%,平均差值分別為6.7%和5.2%;(4)灰?guī)r常態(tài)砂和碾壓砂微粒含量在石粉含量中所占比例基本相同,約為石粉含量的80.4%。
[Abstract]:In order to probe into the influence of the change of stone powder content test method recommended by the new and old edition test rules on the test results due to the revision and update of hydraulic concrete sand aggregate test code, combined with the actual engineering practice of Huangdeng Hydropower Station, The influence degree and regularity of different testing methods on the content of limestone artificial sand powder were studied. A total of 535 groups of limestone artificial sand powder content were tested. The results show that: (1) the test method has a significant effect on the content of limestone artificial sand powder. (2) the difference of stone powder content obtained by "wet sieve washing method" and "particle gradation dry sieve method" and the distribution of particle content data obtained by "wet sieve washing method" basically meet the normal distribution. Curves; (3) the difference of the content of normal sand and roller compacted sand powder detected by the two test methods was 59% and 4% respectively, the average difference was 6.7% and 5.2%, respectively; (4) the proportion of normal sand and compacted sand particles in limestone and compacted sand was basically the same in the content of stone powder. About 80.4% of the stone powder content.
【作者單位】: 長江科學(xué)院工程質(zhì)量檢測中心;華能瀾滄江水電有限公司黃登·大華橋水電工程建設(shè)與管理局;
【分類號】:TV431
本文編號:2161925
[Abstract]:In order to probe into the influence of the change of stone powder content test method recommended by the new and old edition test rules on the test results due to the revision and update of hydraulic concrete sand aggregate test code, combined with the actual engineering practice of Huangdeng Hydropower Station, The influence degree and regularity of different testing methods on the content of limestone artificial sand powder were studied. A total of 535 groups of limestone artificial sand powder content were tested. The results show that: (1) the test method has a significant effect on the content of limestone artificial sand powder. (2) the difference of stone powder content obtained by "wet sieve washing method" and "particle gradation dry sieve method" and the distribution of particle content data obtained by "wet sieve washing method" basically meet the normal distribution. Curves; (3) the difference of the content of normal sand and roller compacted sand powder detected by the two test methods was 59% and 4% respectively, the average difference was 6.7% and 5.2%, respectively; (4) the proportion of normal sand and compacted sand particles in limestone and compacted sand was basically the same in the content of stone powder. About 80.4% of the stone powder content.
【作者單位】: 長江科學(xué)院工程質(zhì)量檢測中心;華能瀾滄江水電有限公司黃登·大華橋水電工程建設(shè)與管理局;
【分類號】:TV431
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