Results 71 to 80 of about 92,964 (262)

Explorations into the Expanded Clay Aggregate Concrete Bricks Strength Properties

International Journal of Innovative Research in Engineering & Management, 2022
This experiment aims to examine the strength characteristics of structural light weight concrete generated by substituting light weight aggregates like Cinder (class-F) and ECA for coarse aggregate in M30 grade concrete. Lightweight concrete is created from cinder and ECA, with cement and coarse aggregate substituted at 40%, 50%, 60%, and 100%. The mix
S. Anka Rao, N. Priyanka, D Kavitha, G Malleswara rao, T. Raghu Vamsi   +4 more
openaire   +1 more source

Permeability of granite from a shallow buried mountain pipe gallery tunnel under unloading confining pressure

Deep Underground Science and Engineering, EarlyView.
Triaxial compression tests under unloading confining pressure conditions were conducted to systematically analyze the permeability behavior of granite retrieved from the different classification surrounding rocks. Abstract The rock mass within mountain tunnels undergoes complex changes in permeability, strength, and deformation during tunneling ...
Xiaoyan Zhang, Yonghua Ye, Jianping Zuo, Baojiang Han, Weigang Jiao   +4 more
wiley   +1 more source

Influence of Fly Ash, Bottom Ash, and Light Expanded Clay Aggregate on Concrete

Advances in Materials Science and Engineering, 2015
Invention of new methods in strengthening concrete is under work for decades. Developing countries like India use the extensive reinforced construction works materials such as fly ash and bottom ash and other ingredients in RCC construction.
S. Sivakumar, B. Kameshwari
doaj   +1 more source

Mechanical Properties of Barchip Polypropylene Fibre-reinforced Lightweight Concrete Made With Recycled Crushed Lightweight Expanded Clay Aggregate

Frontiers in Materials, 2021
Concrete is one of the broadly used construction materials in the construction industry. This research intends to recommend the replacement of conventional coarse aggregates with recycled lightweight expanded clay aggregate (LECA) which offers several ...
Ming Kun Yew, Ming Chian Yew, Jing Han Beh, Lip Huat Saw, Foo Wei Lee, Yee Ling Lee   +5 more
doaj   +1 more source

Semi‐analytical solution for the stability of deep vertical shaft considering time‐dependent rock‐structure interaction

Deep Underground Science and Engineering, EarlyView.
A novel cavity contraction solution and multilayer shaft wall model were developed to analyze deep shaft stability, considering rock viscosity, support structures, and water pressure, with successful validation through a Hulusu Coal Mine case study.
Bin Chen, Pinqiang Mo, Zhao Lu, Lianfei Kuang, Qiang Zhang, Abolfazl Eslami   +5 more
wiley   +1 more source

Multiple injection techniques to stimulate complex fracture networks in coal reservoirs: A case study on gas disaster reduction of subsurface coal mine in southwest China

Deep Underground Science and Engineering, EarlyView.
An experimental device for physical simulation of hydraulic fracturing, comprising: a load‐bearing mechanism with multiple interconnected plates that collectively form an sample chamber; a load‐generating mechanisms, with multiple load‐generating mechanisms arranged within the experimental chamber.
Delei Shang, Farui Shi, Jun Lu, Minghui Li, Cunbao Li, Heping Xie   +5 more
wiley   +1 more source

Strengthening urban resilience in China through underground infrastructures management: Addressing global climate challenges with technological solutions

Deep Underground Science and Engineering, EarlyView.
This paper explores how climate‐resilient technologies, such as smart grids, digital twins, and self‐healing materials, can enhance urban resilience. It highlights the urgent need for proactive planning, public‐private collaboration, and data‐driven innovation to future‐proof underground infrastructure amid accelerating climate and urban pressures ...
Kai Chen Goh, Tonni Agustiono Kurniawan, Christia Meidiana, Abdelkader Anouzla, Faissal Aziz, Imran Ali, Joan Cecilia C. Casila, M. Imran Khan, Dongdong Zhang, Meihui Jiang, Mohd Hafiz Dzarfan Othman, Md Munir Hayet Khan, Kasun Kumara Dissanayake   +12 more
wiley   +1 more source

Expanded Fly Ash Clay Aggregate a Sustainable Alternative Coarse Aggregate for Concrete [PDF]

, 2019
Demand for natural aggregates in making concrete is increasing every day. Concrete is widely used in turnkey projects and small-scale projects. An alternative sustainable coarse aggregate for natural coarse aggregate can reduce the amount of pollution ...
MUTHUKANNAN, M., WINSLEY, Bright Brabin
core  

Study on the composite fracture characteristics of filling and reinforcing cracked rock mass after high temperature damage

Deep Underground Science and Engineering, EarlyView.
Cement infill shares compressive and shear stresses during loading, while interfacial friction hinders crack propagation and reduces stress concentration, improving the rock's load‐bearing capacity. Failure modes vary with crack inclination. Unfilled specimens show four modes.
Shihao Yuan, Qiang Sun, Jianjun Hu, Liwei Zhang, Jishi Geng   +4 more
wiley   +1 more source

EXPERIMENTAL DETERMINATION OF THE TOTAL SHRINKAGE STRAIN OF REINFORCED CONCRETE

International Journal for Computational Civil and Structural Engineering
The article proposes a method for measuring the total shrinkage strain of a reinforced concrete prism in such a way that it is possible to measure the total shrinkage strain on an open surface of the prism no later than three hours after concreting ...
Valeryia Rzhevutskaya, Yuliya Maskalkova
doaj   +1 more source