Rapid Detection Method of Dr Value of Large Particle Size Filter Materials in Earth Rock-Filling Dam of NuoZhadu

2011 ◽  
Vol 368-373 ◽  
pp. 2309-2313
Author(s):  
Jian Feng Li ◽  
Yun Xian Zhou ◽  
Zhan Jin Ning ◽  
Qi Qin Zhu
Keyword(s):  
Particle Size ◽  
Rapid Detection ◽  
Large Particle ◽  
Detection Method ◽  
Filter Material ◽  
Dry Density ◽  
Large Particle Size ◽  
Filter Materials ◽  
Grade Material ◽  
Soil Gradation

On construction quality detection in high earth rock-filling dam, it is difficulty for testing the relative density Dr Value of large particle size filter materials. In this paper, we have effectively controlled the filling quality of filter material II in Nuozhadu core dam, and at the same time, explored and applied the rapid detection method of Dr Value of filter material II. Then studied the relationship between maximum, minimum dry density of the different grade material in the case of same compacted function and soil gradation parameters, and put forward a method of maximum and minimum dry density associated with particle composition, fitting relation curve between dry density and particle content less than 5mm(S5). By detecting the content of S5, it can be directly reached maximum and minimum dry density, and then calculate the Dr Value.

Hevea Latex of Large Particle Size

1939 ◽  
Vol 31 (12) ◽  
pp. 1509-1512 ◽  
Author(s):  
J. McGavack
Keyword(s):  
Particle Size ◽  
Large Particle ◽  
Large Particle Size

Microwave-assisted removal of sulfur in large particle size coal by bromine water

Fuel ◽  
2021 ◽  
Vol 289 ◽  
pp. 119838
Author(s):  
Xiaogang Mu ◽  
Jinfang Liu ◽  
Fei Gao ◽  
Cunbao Deng ◽  
Zhixin Jin ◽  
...  
Keyword(s):  
Particle Size ◽  
Large Particle ◽  
Large Particle Size ◽  
Bromine Water ◽  
Microwave Assisted

Direct synthesis of zeolite Y with large particle size

2001 ◽  
Vol 3 (7) ◽  
pp. 773-780 ◽  
Author(s):  
Samia Ferchiche ◽  
Juliusz Warzywoda ◽  
Albert Sacco
Keyword(s):  
Particle Size ◽  
Large Particle ◽  
Zeolite Y ◽  
Direct Synthesis ◽  
Large Particle Size

scholarly journals Influence of bagasse ash with different fineness on alkali-silica reactivity of mortar

2018 ◽  
Vol 68 (332) ◽  
pp. 169 ◽  
Author(s):  
S. Ramjan ◽  
W. Tangchirapat ◽  
C. Jaturapitakkul
Keyword(s):  
Particle Size ◽  
Compressive Strength ◽  
Portland Cement ◽  
Large Particle ◽  
Ordinary Portland Cement ◽  
Alkali Silica Reaction ◽  
Large Particle Size ◽  
High Compressive Strength ◽  
Alkali Silica Reactivity

This research aimed to study the effect of finenesses of bagasse ash (BGA) on the alkali-silica reaction of mortar. The BGA sample was ground to have particles retained on a sieve No. 325 of 33±1% and 5±1% by weight. Ground BGA samples were used separately to replace ordinary Portland cement (OPC) at rates of 10, 20, 30 and 40% by weight of binder to cast mortars. The compressive strengths and the alkali-silica reaction (ASR) of mortars were investigated. The results showed that a large particle size of BGA is not suitable for use in lowering ASR because it results in a low compressive strength and high expansion due to ASR. The mortars containing BGA with higher fineness exhibited higher compressive strength and lower expansion due to ASR than the mortars containing BGA with lower fineness. The results also suggested that the ground BGA retained on a sieve No. 325 of less than 5% by weight is suitable to be used as a good pozzolan which provides high compressive strength and reduces the expansion of mortar due to ASR even though it contains high LOI. The obtained results also encourage the utilization of ground BGA effectively which leads to reduce the disposal of bagasse ash.

scholarly journals RESEARCH ON STABILITY OF FISHING BANK MADE BY LARGE PARTICLE SIZE POROUS CONCRETE PLACED UNDER SEA : Experiment using large scale waterway(Materials and Construction)

2005 ◽  
Vol 11 (22) ◽  
pp. 53-58
Author(s):  
Akihiro MAEGAWA ◽  
Toshihiko SHAKOUCHI ◽  
Yukihisa YUASA ◽  
Naoki MISHIMA ◽  
Shigemitsu HATANAKA
Keyword(s):  
Particle Size ◽  
Large Particle ◽  
Large Scale ◽  
Large Particle Size ◽  
Porous Concrete

Analysis on the Gravel Stratum Deformation by Dewatering

2007 ◽  
Vol 353-358 ◽  
pp. 3022-3025
Author(s):  
Wen Zhao ◽  
Yan Xu ◽  
Hai Xia Sun
Keyword(s):  
Particle Size ◽  
Groundwater Level ◽  
Large Particle ◽  
Ground Deformation ◽  
Dynamic Balance ◽  
Shallow Groundwater ◽  
Large Particle Size ◽  
Stress Deformation ◽  
Stratum Deformation ◽  
Shallow Groundwater Level

Large particle-size, shallow groundwater level, and large permeate coefficient are the characteristics of gravel stratum, which may results in large ground deformation. Ground deformation depends on several factors. Using the RFPA2D-Flow software exploited by the Center for Rock Instability and Seismic Research of Northeastern University (CRISR), the seepage-stress-deformation coupling rules of soil, which are influenced by different soil distributing, drawdown, enclosure and excavating, were analyzed, and the deformation of gravel in the dynamic balance due to the interaction between seepage and stress is studied.

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