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An Experimental Study On The Shear Behaviour Of

In this study, a series of large-scale direct shear test LDST was undertaken to evaluate the effect of different sizes and different amounts of recycled tyre waste on the shear strength properties of recycled concrete aggregate RCA mixed with crumb rubber as pavement basesubbase application.

Pdf Influence Of Aggregate Fracture On Shear

2020-7-23Design methods for shear in reinforced concrete structures typically rely upon shear transfer through cracks, which depends upon the crack opening and sliding displacements and the roughness of the crack surfaces. The effectiveness of shear transfer through aggregate interlock is commonly believed to be reduced if the coarse aggregate fractures at cracks, as is frequently the case in high ...

Behavior Of Shear Friction Push

This paper presents the experimental results of a study whose objective was to study the shear-friction behavior of normal-aggregate and recycled-aggreg... .

Seismic Performance Of Recycled Aggregatefilled ...

2019-10-30From the studies found in the literature, the internal friction angle of the recycled aggregates was determined to be 45 using large-scale direct shear tests. 17,20,25 Thus, when the internal friction angle of the recycled aggregate was accepted to be 45 and the internal friction angle of the NA was accepted to be 50, compared with the NA ...

Direct Shear Behavior Of Fiber Reinforced Concrete

that the mechanism of shear transfer in recycled aggregate is the same as in natural aggregate. The compressive strength and lateral reinforcement had the major role affect the shear strength of recycled aggregate. Waseem, et al., 2016, tested push off the specimen to study the shear strength of recycled aggregate concrete with several ...

Shear Strength In The Interface Between Normal Concrete ...

concrete and recycled aggregate concrete, with different ages. The adopted geometry for the slant shear specimens was a 150x150x450 mm3 prism, with the shear plane at 30 degrees with the vertical. For each substitution rate of NCA by RCCA, three types of roughness for the

Confinement

Confinement-Shear Lattice Model for Concrete Damage in Tension and Compression I. Theory ... with the shear stiffness exhibiting friction and cohesion. The connection stiffness in tension and shear also depends on the transversal confining stress. ... Use of High Fineness of Fly Ash to Improve Properties of Recycled Aggregate Concrete.

Coefficient Of Friction Topic

2020-5-1Shear-Friction Behavior of Recycled and Natural Aggregate ConcreteAn Experimental Investigation. Publication Structural Journal Date 1112015 Simplified Diverse Embedment Model for Steel Fiber- Reinforced Concrete Elements in Tension. Publication Materials Journal

Mechanical Properties Of Recycled Concrete

Mechanical properties of recycled concrete aggregate RCA and recycled asphalt pavement RAP were evaluated for use as backfill in mechanically stabilized earth MSE walls. Large scale triaxial compression tests, interface direct shear tests, and pull-out tests were conducted to evaluate interaction of RCA and RAP with geosynthetics.

An Analysis Of The Shear Strength Of Recycled

Increasing the use of recycled aggregates in civil engineering applications has the potential to reduce the current natural aggregate consumption requirements of the construction industry. Current levels of natural aggregate production are under threat due to tighter restrictions on planning issues related to quarrying. This paper presents a study on the shear strength of recycled aggregates ...

Journal Of Sustainable Cement

Shear friction in recycled aggregate concrete Nikhil Shejwadkar, Bhupinder Singh, Shakeel Ahmad Waseem Crack sealing capacity in chloride-rich environments of mortars containing different cement substitutes and crystalline admixtures Ruben P. Borg, Estefania Cuenca, Enrico Maria Gastaldo Brac, Liberato Ferrara

Effect Of Recycled Coarse Aggregate On

The Shear Strength value for 0 recycled aggregate is 6.97 Nmm2 and for 20 of recycled aggregate the value is 5.68 Nmm2 there is a decrease of 18.5 between these two trail mixes.The Shear Strength value for 100 recycled aggregate is 2.45 Nmm2 indicating a decrease of 64.85 between the 0 and 100 replacements of NCA with RCA.The ...

Mechanical Properties Of Recycled Aggregates Concrete

2.7 RECYCLED AGGREGATE CONCRETE A SUSTAINABLE BUILT ENVIRONMENT. In the present study the influence of recycled coarse aggregate RCA obtained from three different sources having different ages of structures are on the properties of recycled aggregate concrete RAC are investigated. RAC mixes are prepared with each source of RCA separately.

Uses For Recycled And Secondary Search Aggregates Re

2019-5-9Data on the use of secondary and recycled aggregates is somewhat limited but, in 2001, it was estimated that out of 146 million tonnes produced in England and Wales, approximately 49 million tonnes was re-used as aggregate British Geological Survey, 2003. This brings the total use of aggregate and recycled and

Recycled Aggregate Concrete As Structural Material ...

Recycled aggregate concrete as structural material Recycled aggregate concrete as structural material Etxeberria, M. Mar, A. Vzquez, E. 2006-07-13 000000 Materials and Structures 2007 40529541 DOI 10.1617s11527-006-9161-5 ORI G INA L AR TICL E M. Etxeberria A. R. Mar E. Va zquez Received 13 July 2005 Accepted 15 March 2006 Published online 13 July 2006 RILEM ...

Chemistry Of Recycled Concrete Aggregate Leachate In ...

2020-1-28recycled concrete aggregate leachate chemistry, and her elegant model informed and supported the conclusions of this thesis. Ms. Campagnola championed my edification in laboratory chemistry and contributed substantially to the data collection and analysis of

Potential Use Of Crushed Concrete And Recycled Asphalt ...

2015-9-16dated-drained shear strength tests indi-cate that crushed concrete has strength characteristics comparable to those of conventional fill materials. Using the combined results from triaxial testing and large-scale direct shear testing, the derived effective shear strength param-eters for

Sustainable Development In Civil Engineering Based On ...

2017-5-24The use of recycled concrete aggregate in a dense graded aggregate base course No. FHWA-NJ-2008-002. Jimnez, J. R., Agrela, F., Ayuso, J., Lpez, M. 2011. A comparative study of recycled aggregates from concrete and mixed debris as material for unbound road sub-base. Materiales de Construccin, 61302, 289-302. Melbouci, B. 2009 ...

Angle Of Repose Of Recycled Asphalt Concrete

Sec 401. Recycled asphalt materials shall be in accordance with. Sec 403.2 ... MS-2, Mix Design Methods for Asphalt Concrete and Other Hot-Mix Types. .... widening will be necessary to permit the indicated angle of repose or shear angle outside of.

Department Of Civil Engineering,Indian Institue Of ...

2020-7-2 Shear transfer in recycled aggregate concrete. ACI Structural Journal, In press. Waseem S.A. Singh, B. 2017 Shear transfer in normal and in high-strength recycled aggregate concrete, ASTM Journal of Testing and Evaluation, 461 1-13. Shejwadkar N., Singh, B. Waseem S. A. 2016 Shear friction in recycled aggregate concrete.

Cracking Propagation Of Reinforced Concrete Using ...

This paper describes the experimental investigation on the cracking propagation and pattern of reinforced concrete beam containing PET aggregate as fine aggregate that subjected to shear. The replacement ratio of 25, 50 and 75 were used in this study. Prior to structural test, the materials properties which include the compressive strength test, split tensile test, Modulus of Elasticity ...

China Journal Of Highway And Transport

2015-1-20The recycled aggregate that is composed of recollected aggregate and new aggregate has a good performance of angularity, ... HB-FRP shear effect was divided into two parts concrete wedge friction and dowel action of nails.The concrete failure mode under the ...

Bond Behaviors Between Full

Full-recycled-aggregate concrete aRAC is a new concrete reusing 100 fine and coarse recycled aggregates produced from waste concrete of demolished concrete structures. As there is a lack of studies on the bond behavior between steel bar and aRAC, findings of this study are of significance for the structural application of aRAC.

Influence Of Recycled Concrete Aggregate Content On

Authors L. Chiriatti, H. Hafid, H. R. Mercado-Mendoza, K. L. Apedo, C. Fond, F. Feugeas Abstract Substituting natural aggregate with recycled aggregate coming from concrete demolition represents a promising alternative to face the issues of both the depletion of natural resources and the congestion of waste storage facilities.

Recycling And Reuse Of Reclaimed Portland Cement

2018-4-18were performed on RPCC and natural aggregates, concrete made with recycled and natural aggregate, including specific gravity and absorption, slump and compression tests. For the second case, shear tests were performed on RPCC aggregate to obtain the failure envelope and the friction angle.

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