scholarly journals Uniaxial compressive strength of hydraulic, graded iron and steel slag base-course material produced at different manufacturers and its increase with curing time

2016 ◽  
Vol 2 (46) ◽  
pp. 1614-1618
Author(s):  
Nobuyuki Yoshida
Keyword(s):  
Compressive Strength ◽  
Uniaxial Compressive Strength ◽  
Steel Slag ◽  
Curing Time ◽  
Iron And Steel ◽  
Base Course Material ◽  
Course Material ◽  
Base Course

The Research on the Application of the Steel Slag Produced by the Converters of Jigang Group Co. Ltd on Base Course

2012 ◽  
Vol 178-181 ◽  
pp. 1699-1705
Author(s):  
Fa Liang Lu ◽  
Jin Li
Keyword(s):  
Mechanical Property ◽  
Unconfined Compressive Strength ◽  
Steel Slag ◽  
Coal Ash ◽  
Strength Test ◽  
Water Stability ◽  
Compressive Strength Test ◽  
Base Course Material ◽  
Course Material ◽  
Base Course

To test and inspect the chemical compositions and mechanical properties of the steel slag produced by the converters of Jigang Group co. ltd, and study the feasibility of using the steel slag as base course material. Prepare cement stabilized steel slag specimens with different contents of cement mixed for the unconfined compressive strength test. Determine through test its strength after 7 days and 28 days and its water stability after 7 days’ soaking. Prepare in the same method of two different kinds of cement and coal ash stabilized specimens with different contents of coal ash mixed for the unconfined compressive strength test, to test its strength and water stability. The comparison on mechanical property with cement stabilized macadam indicates that the cement stabilized steel slag and cement with coal ash stabilized steel slag both have favorable mechanical property and water stability and the steel slag produced by the converters of Jigang Group co. ltd can be popularized for use as base course material.

scholarly journals Evaluation on Strength Properties of Lime–Slag Stabilized Loess as Pavement Base Material

2019 ◽  
Vol 11 (15) ◽  
pp. 4099 ◽  
Author(s):  
Liang Jia ◽  
Li Zhang ◽  
Jian Guo ◽  
Kai Yao ◽  
Sin Mei Lim ◽  
...  
Keyword(s):  
Base Material ◽  
Correlation Coefficients ◽  
Strength Properties ◽  
Binder Content ◽  
Curing Time ◽  
Test Results ◽  
Base Course Material ◽  
Course Material ◽  
Base Course ◽  
Pavement Base

This study aimed to investigate the feasibility of using lime–slag stabilized loess as base-course material by assessing its unconfined compressive strength (UCS). Loess stabilized with various mix ratios were compacted and cured to three, five, seven, and 28 days, respectively, for further strength tests. The effects of binder content, lime-to-slag (L/S) ratio, porosity, and curing time on the UCS of stabilized loess were addressed in detail. The test results show that UCS increases with the increase in binder content or curing time, and it gains strength rapidly within the first seven days of curing. At the same binder content, UCS decreases with the decrease in L/S ratio or porosity. Finally, the correlations of UCS with binder content, porosity, and curing time were derived, which exhibited reasonable correlation coefficients R2 (from 0.86 to 0.97).

scholarly journals POTENTIAL USE OF CINDER GRAVEL AS AN ALTERNATIVE BASE COURSE MATERIAL THROUGH BLENDING WITH CRUSHED STONE AGGREGATE AND CEMENT TREATMENT

2019 ◽  
Vol 10 (2) ◽  
pp. 101-112
Author(s):  
M. Seyfe ◽  
A. Geremew
Keyword(s):  
Compressive Strength ◽  
Mechanical Test ◽  
Crushed Stone ◽  
Crushed Rock ◽  
Sieve Analysis ◽  
Course Materials ◽  
Base Course Material ◽  
Course Material ◽  
Base Course ◽  
Flakiness Index

Cinder gravels are pyroclastic materials associated with recent volcanic activity which occur in characteristically straight sided cone shaped hills. The aim of this study was to use this marginal material which is abundantly available in many parts of Ethiopia by modifying their properties through mechanical blending and chemical stabilization. Results of physical and mechanical test conducted on cinder gravel samples prove their marginality to be used as base course materials especially for highly trafficked roads. An experimental investigation were carried by blending cinder gravels with conventional crushed stone bases course material, Crushed Stone Aggregate (CSA), in proportions of cinder/ Crushed Stone Aggregate (CSA) (10/90, 20/80, 30/70, 40/60 and 50/50) and treating with 6. 8 and 10% of cement. According to results of sieve analysis, Aggregate crushing value (ACV), flakiness index and California Bearing Ratio (CBR), 30% of Crushed Stone Aggregate (CSA) can be replaced by cinder gravels for use as Fresh, crushed rock (GB1) material and for cement treated cinder gravels adding 6% and 8% cement make them suitable for use as Stabilized base course (CB2) and (CB1) base course materials respectively, referring to their 14 day compressive strength as determined by Unified compressive strength test(UCS) test.

scholarly journals Evaluation of Cement and Bitumen Emulsion on Strength Characteristics of Native South African Granular Soil as Base Course Material

2019 ◽  
Vol 4 (1) ◽  
Author(s):  
Oladapo S Abiola ◽  
Reece Wilson ◽  
Anthony Barnard ◽  
Shaun Hattingh ◽  
William K Kupolati ◽  
...  
Keyword(s):  
Tensile Strength ◽  
Compressive Strength ◽  
South African ◽  
Unconfined Compressive Strength ◽  
Base Layer ◽  
Bitumen Emulsion ◽  
Base Course Material ◽  
Course Material ◽  
Indirect Tensile ◽  
Base Course

Pavement rehabilitation where the material in the existing pavement is recycled in-situ with bitumen will sustain the environment with conservation of natural aggregates, reduction in noise, dust emission and traffic disruption. This study investigate the effects of a native South African granular material stabilized with cement and bitumen emulsion as a base layer in pavement construction. The material stabilized with cement-bitumen emulsion (2-3%) was subjected to Unconfined Compressive Strength (UCS) and Indirect Tensile Strength (ITS) tests for 1, 4, 7 and 28 days curing. The UCS and ITS requirement was evaluated with respect to a base layer for design traffic application of less than six million equivalent single axles. The results of UCS and ITS tests for the stabilized material showed improved strength and have the potential for use as a base course material for the design traffic. The result revealed that 2.5% cement and bitumen emulsion meets the minimum strength characteristics for the base layer. Relative to 2% cement and 2% bitumen emulsion, ITS obtained for 4 and 7 days of curing increased approximately by 24%, 41% and 24%, 53% respectively. Models for UCS in terms of ITS was developed for cement and bitumen emulsion which will make one test among the two sufficient to indicate the strength of cement and bitumen emulsion stabilized materials at the mix design level. Bitumen stabilization is a quick construction method, with lower cost than reconstruction and good for rehabilitation. Keywords— bitumen emulsion, cement, granular, indirect tensile strength unconfined compressive strength. 

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