Pervious concrete using fly ash aggregate as coarse aggregate-an experimental study

2018 ◽  
Author(s):  
Subhakanta Dash ◽  
Biswabandita Kar ◽  
Partha Sarathi Mukherjee
Keyword(s):  
Experimental Study ◽  
Fly Ash ◽  
Coarse Aggregate ◽  
Pervious Concrete

Strong Interlocked Skeleton Dense Gradation for Cement-Fly Ash Stabilized Crushed-Stones

2011 ◽  
Vol 413 ◽  
pp. 507-513 ◽  
Author(s):  
Di Li ◽  
Ying Jun Jiang
Keyword(s):  
Mechanical Property ◽  
Experimental Study ◽  
Fly Ash ◽  
Compression Strength ◽  
Coarse Aggregate ◽  
Material Design ◽  
Fine Aggregate ◽  
Aggregate Gradation ◽  
Aggregate Content ◽  
Numerical Experimentation

In order to optimize the material design for cement-fly ash stabilized crushed-stones, the strong interlocked coarse skeleton gradation was put forward based on the numerical experimentation method. In addition, the vibration method was employed to carry out the experimental study on the mechanical property of the cement-fly ash stabilized crushed-stones. Besides, the influencing regularities of the mixed amount of cement and fly ash on the cement-fly ash stabilized crushed-stones were researched. The result showed that the numerically simulated coarse aggregate gradation had great interlocked power, and the fine aggregate content of 31%±3% had stabilized mechanical property. Then, strong interlocked skeleton dense gradation of the cement-fly ash stabilized crushed-stones was put forward. Furthermore, when the 7d compression strength was used as the research indicator, the best proportion of the cement and fly ash was 1:0.5~1:1, and when the ultimate strength was used as the research indicator, then, the best ratio of the cement and fly ash was 1:1~1:1.5. Therefore, the cement dosage was advised to be 3~4% and the mixture amount of fly ash was 4~5%.

Experimental Study on Thermal Conductivity of Road Concrete

2012 ◽  
Vol 178-181 ◽  
pp. 1573-1576
Author(s):  
Yan Cong Zhang ◽  
Ling Ling Gao ◽  
Jun Min Shen
Keyword(s):  
Thermal Conductivity ◽  
Experimental Study ◽  
Fly Ash ◽  
Coarse Aggregate ◽  
Gas Content ◽  
Cement Ratio ◽  
Water Cement Ratio ◽  
Air Content ◽  
Main Factor

In order to analyses affection to thermal conductivity from various factors, such as: coarse aggregate, mortar ratio, sand ratio, water cement ratio, fly ash and air content, thermal conductivity of a series of concrete specimens were determined based on thermal conductivity meter. The results showed that: coarse aggregate, mortar ratio and gas content is the main factor affecting concrete thermal conductivity. Meanwhile, water-cement ratio, sand ratio and fly ash had few effects on the thermal conductivity. In addition, a certain formula to predict thermal conductivity of concrete was proposed.

scholarly journals Penetration and Strength Analysis of Pervious Concrete

2021 ◽  
Vol 2070 (1) ◽  
pp. 012244
Author(s):  
Kuldeep Kumar ◽  
Manjeet Bansal ◽  
Rishav Garg ◽  
Rajni Garg
Keyword(s):  
Experimental Study ◽  
Compressive Strength ◽  
Portland Cement ◽  
Coarse Aggregate ◽  
Pervious Concrete ◽  
Strength Analysis ◽  
Porous Concrete ◽  
Fine Aggregates ◽  
Infiltration Tests ◽  
Curing Age

Abstract Porous concrete is an amalgamation of coarse aggregate, Portland cement, and water, which permits rainfall water to permeate through the surface and into the ground before it runs off. Porous concrete encompasses little or no fine aggregates and adequate cementitious fixative to coat the coarse aggregate while keeping the voids interconnected. IRC 44-2017 states that range of permeability for pervious concrete should be from 0.135 cm/second to 1.22 cm/second and array of compressive strength should be 5MPa - 25MPa. In this experimental study, two properties of no fine concrete namely compressive strength and porousness at the curing age of 7th & 28rd days has been targeted. Compressive strength and Infiltration tests were conducted on the pervious concrete of grade M10 and M15 by keeping variation of fine aggregates of 0% - 5%. We observed that fines aggregate help to rise the compressive strength of porous concrete but decrease the permeability. Thus, by careful optimization of the mix, pervious concrete can be obtained for suitable use in low strength load.

Experimental Study of Concrete By Partial Replacement of Coarse Aggregate By E-Waste

2018 ◽  
pp. 163-167
Author(s):  
A. C. Umare ◽  
Akshay Tak ◽  
Amrut Talekar ◽  
Akshay Waghmare ◽  
Ajinkya Todkar ◽  
...  
Keyword(s):  
Experimental Study ◽  
Coarse Aggregate ◽  
Partial Replacement

scholarly journals Experimental Study on Concrete With Partial Replacement of Coarse Aggregate with Cashew Shells

2021 ◽  
Vol 1770 (1) ◽  
pp. 012036
Author(s):  
B Priyadharshini ◽  
R Nirmala ◽  
Eshanthini ◽  
C Manoj Kumaar
Keyword(s):  
Experimental Study ◽  
Coarse Aggregate ◽  
Partial Replacement
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