Results 81 to 90 of about 33,572 (231)

Lime stabilisation for earthworks: a UK perspective [PDF]

, 2014
Lime stabilisation is a versatile technique applied during earthworks operations. Modern soil recycling units are much more efficient at pulverising fill material and intermixing the added binder/water than machinery available 20 years ago.
Beetham P, Bell FG, Bergado DT, Bin S, Bohn HL, BSI, BSI, BSI, Davidson LK, Diamond S, Eades JE, Greaves HM, Highways Agency, Highways Agency, Highways Agency, Holt CC, Ingles OG, John Bateman, Longworth I, McAllister LD, Mitchell JK, Neil Dixon, Paul Beetham, Paul Fleming, Perry J, Petry TM, Reeves GM, Robert Hutchison, Rowell DL, Sherwood PT, Sherwood PT, Snedker EA, Stocker PT, Sweeney DA, Taylor HFW, Tom Dijkstra, Van Olphen H, Winter NB   +37 more
core   +2 more sources

Design and evaluation of oil well cement-based composite materials improved by multi-component flexible materials

Materials Research Express
Complex oil and gas wells often experience complex stresses underground during the extraction process, which can easily cause damage to the cement paste.
Hui Zhang, Chengwen Wang
doaj   +1 more source

Contamination effects of drilling fluid additives on cement slurry

Natural Gas Industry B, 2015
During the cementation of deep wells, contamination at the contact surface between cement slurry and drilling fluid will present a technical challenge, which may threaten operation safety.
Youzhi Zheng, Chaoyi She, Kunquan Yao, Xiaoyang Guo, Huali Zhang, Tao Yang, Ming Li   +6 more
doaj   +1 more source

Application of Mechanical Nitrogen Filling Foam Cementing Technique in Shale Gas Wells

Shiyou jixie, 2022
Shale gas wells under complex conditions are faced with some cementing problems such as lost of circulation, low displacement efficiency and poor sealing effect.
Kuang Lixin, Liu Kui, Ding Shidong, Chu Yongtao, Zhou Shiming, Jiang Zhenghua, Xiao Jingnan   +6 more
doaj  

Ultrasonic sound speed measurement as method for the determining the hydration degree of gypsum [PDF]

, 2010
This article addresses the sound velocity through slurries as well as non-porous and porous\ud materials. The focus is on using the sound velocity for the microstructure prediction of porous\ud materials, especially gypsum plasterboards, during and after
Brouwers, H.J.H., Korte, A.C.J. de
core   +1 more source

Properties of Degraded Waste PET-Modified Styrene-Acrylic Emulsions for Cement Slurry Materials

Advances in Civil Engineering, 2019
The properties of a modified cement slurry based on degraded waste PET-modified styrene-acrylic emulsions are studied. The effects of the modified styrene-acrylic emulsion on water consumption, setting time, retarding effect, water retention ...
Jinxi Dou, Guijin Zhang, Sufang Li, Chengyu Tian, Cunlu Ji, Cong Zhang   +5 more
doaj   +1 more source

Pengaruh Campuran Semen Dalam Pembuatan Soil Cement Column Pada Tanah Margomulyo-surabaya [PDF]

, 2015
Aplikasi dari soil cement column untuk memperbaiki daya dukung dari tanah lempung lunak Margomulyo diteliti dalam penelitian ini untuk menemukan kenaikan dari daya dukung tanah terhadap waktu dengan menggunakan kadar semen yang berbeda dalam sebuah model
Halim, A. (Alvin), Prawono, S. (Sugie)
core  

Design charts for contaminant transport through slurry trench cutoff walls [PDF]

, 2017
Slurry trench cutoff walls with low-permeability backfill material, such as soil-bentonite and slag-cement-bentonite, are used widely for containment of subsurface pollution.
Chen, Guan-Nian, Chen, Yun-Min, Cleall, Peter John, Li, Yu-chao   +3 more
core   +1 more source

The influence of ultrafine waste glass powder on the properties of oil well cement-based composite materials

Materials Research Express
In order to improve the mechanical properties of oil well cement-based composite materials and achieve harmless treatment of waste glass and recycling of waste resources, this paper evaluates the influence of ultrafine waste glass powder on the working ...
Sutao Ye, Xiao Cai, Zhengchao Zhao, Jingtian Zhang, Jie Liang, Qingfeng Guo, Luchao Yang   +6 more
doaj   +1 more source

Automated Additive Construction (AAC) for Earth and Space Using In-situ Resources [PDF]

, 2016
Using Automated Additive Construction (AAC), low-fidelity large-scale compressive structures can be produced out of a wide variety of materials found in the environment.
Ali, Hisham, Andersen, Christian, Burgoyne, Hayden, Chambers, Wesley, Clinton, Raymond, De Kestellier, Xavier, Ebelt, Keye, Gerner, Shai, Hofmann, Douglas, Hogstrom, Kristina, Howe, Scott, Ilves, Erika, Jerves, Alex, Keenan, Ryan, Keravala, Jim, Khoshnevis, Behrokh, Kochmann, Dennis, Lim, Sungwoo, Metzger, Philip, Meza, Lucas, Mueller, Robert P., Nakamura, Takashi, Nelson, Andrew, Partridge, Harry, Pettit, Donald, Pyle, Rod, Reiners, Eric, Shapiro, Andrew, Singer, Russell, Tan, Wei-Lin, Vazquez, Noel, Wilcox, Brian, Zelhofer, Alex   +32 more
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