crushing strength of aggregate pdf the effect of clayey

(PDF) THE EFFECT OF CLAYEY IMPURITIES IN SAND ON THE ...

PDF On Sep 1, 2005, L M Olanitori and others published THE EFFECT OF CLAYEY IMPURITIES IN SAND ON THE CRUSHING STRENGTH OF CONCRETE (A CASE STUDY OF SAND IN AKURE METROPOLIS, ONDO STATE, NIGERIA ...

THE EFFECT OF CLAYEY IMPURITIES IN SAND ON THE

THE EFFECT OF CLAYEY IMPURITIES IN SAND ON THE CRUSHING STRENGTH OF CONCRETE (A CASE STUDY OF SAND IN AKURE METROPOLIS, ONDO STATE, NIGERIA) L M Olanitori, Federal University of Technology, Akure ...

[PDF] The Effect of Aggregate Size on The Strength of ...

the effect of clayey impurities in sand on the crushing strength of concrete (a case study of sand in akure metropolis, ondo state, nigeria) L. M. Olanitori Engineering

(PDF) The Study on The Effect of Clay Content in Fine ...

British Standards (1992): Specification for Aggregates from Natural Sources for Concrete. BS882:1992. British Standards Institution, London, UK. [6] Olanitori L.M. and Olotuah A.O (2005): The effect of clayey impurities in sand on the crushing strength of concrete (a case study of

Effect of Aggregate Properties on the Crushing Strength of ...

Effect of Aggregate Properties on the Crushing Strength of Concrete. International Journal of Materials Science and Applications. Vol. 4, No. 5, 2015, pp. 343-349. doi: 10.11648/j.ijmsa.20150405.19 Abstract: This paper studied the effect of aggregate properties on the crushing strength

The Study on the Effect of Clay Content in Sand and its ...

increase in split tensile strength when compared to control mix concrete. REFERENCES [1] Olanitori, L.M. Olotuah, A.O. (2005): The Effect of Clayey Impurities In Sand On the Crushing Strength of Concrete (A Case Study of Sand In Akure Metropolis, Ondo State, Nigeria), 30th Conference On

Influence of Crushed Coarse Aggregates on Properties of ...

definitely has effects on properties of concrete because crushing type of aggregate can change and control the shape factor directly. To identify the effects on mechanical properties of concrete (slump value and compressive strength) of Impact Crushed and Vertically Shafted aggregates this study was conveyed. 2. Experimental Procedure and Approac h

EFFECTS OF AGGREGATE TYPE, SIZE, AND CONTENT ON

compressive strengths, while in normal-strength concretes, coarse aggregate strength has little effect on compressive strength. Other research has compared the effects of limestone and basalt on the compressive strength of high-strength concrete (Giaccio, Rocco, Violini, Zappitelli, and Zerbino 1992). In concretes containing basalt, load­

The effect of size on the strength of coarse rock ...

aggregate strength [17,26], which is the origin of crushing and size effect. Extending the work of McDowell and Bolton [29] on the micro-mechanics of particle breakage, Frossard [12] treated theoretically the problem of the size effect in granular materials. This method predicts the size effect on the rockfill shear strength with

Strength of Coarse Aggregates

While we talk about the strength of coarse aggregates it refers to the crushing strength of the aggregate itself. However, the required information on strength of coarse aggregates can be obtained from indirect tests: crushing strength of prepared rock samples, crushed value of bulk aggregate, and performance of aggregate in concrete.

Effect of Ngala Clay on the Compressive Strength of

[6] STL. M. Olanitori (2006). Mitigating the Effect of Clay Content of Sand on Concrete Strength. 31 Conference on our world in concrete structures: 16 – 17, Singapore. [7] Olanitori, L.M. Olotuah, A.O. (2005). The Effect of Clayey Impurities In Sand On the Crushing Strength of Concrete (A Case

The effect of size on the strength of coarse rock ...

aggregate strength [17,26], which is the origin of crushing and size effect. Extending the work of McDowell and Bolton [29] on the micro-mechanics of particle breakage, Frossard [12] treated theoretically the problem of the size effect in granular materials. This method predicts the size effect on the rockfill shear strength with

LIGHTWEIGHT AGGREGATE CONCRETE: EFFECT OF AGE

Lightweight aggregate concrete may be very different from normal weight concrete from this point of view. The properties mainly depend on the properties of the lightweight aggregate like particle density, water absorption capacity. The aim is to study the impact of the time under water storage on compressive strength and fracture tests results.

THE CORRELATION BETWEEN AGGREGATE SHAPE AND

effect of aggregate shape to the hardened concrete properties. The strength and the stiffness of coarse aggregate directly influence the behavior of hardened concrete. Although in normal concrete, strength is controlled by the paste or by the transition zone between paste and aggregate, the strength of high-performance

EFFECTS OF DIFFERENT SIZES OF AGGREGATES ON

strength than mortar and sand concrete of the same cement aggregate ratio. This exceeding strength is, most times, found to be triple (or more) that of mortar. Coarse aggregates, which are the interest of this study, make the difference (Aginam et al., 2013).The effect of maximum size of aggregate in higher grade concrete using high

Strength of Coarse Aggregates

While we talk about the strength of coarse aggregates it refers to the crushing strength of the aggregate itself. However, the required information on strength of coarse aggregates can be obtained from indirect tests: crushing strength of prepared rock samples, crushed value of bulk aggregate, and performance of aggregate in concrete.

PROPERTIES OF DIFFERENT ARTIFICIAL LIGHTWEIGHT

strength. Aggregate crushing value (ACV) is used to identify aggregate crushing strength. The ACV test was conducted in this study according to BS 812: Part 110:1990. The plastic aggregates and NA that passed through a 14.0 mm sieve and then through a 10.0 mm sieve were used. Then, a measuring cylinder was filled with three layers of aggregate ...

(PDF) Effect of the quality of parent concrete on the ...

The compressive strength of concrete mixtures prepared with RA80 and RA100 satisfied the designed 28-day strength of 45 MPa, and it was similar or slightly higher than that of the concrete mixture prepared with natural aggregate only. Fig. 2(a) shows the ratio of the compressive strength of the concrete prepared with recycled aggregate to that ...

Effects of Sand Quality on Compressive Strength of ...

Olanitori, L.M. and Olotuah, A.O. (2005) The Effect of Clayey Impurities in Sand on the Crushing Strength of Concrete (A Case Study of Sand in Akure Metropolis, Ondo State, Nigeria). 30th Conference on Our World in Concrete and Structures, Singapore, 23-24 August 2005. BS 882 (1992) Specification for Aggregates from Naturanl Sources for Concrete.

A STUDY ON RECYCLED CONCRETE AGGREGATES

recycled aggregate and of the new concrete made from it, with nearly 100% of aggregate replacement, were tested. The properties of the concrete made with recycled aggregates were inferior to those of concrete made with virgin aggregates. Effects of crushing age we re moderate: concrete made with aggregates crushed at age 3 days

Impact of mechanical resistance of aggregate on properties ...

Dec 01, 2020  Based on the results obtained, the impact of aggregate crushing resistance on the mechanical properties of HPC was assessed. To this end, three properties were analyzed: modulus of elasticity; splitting tensile strength and compressive strength of HPCs in dependency on aggregate crushing resistance (Fig. 5, Fig. 6, Fig. 7).Download : Download high-res

Effects of Sand Quality on Compressive Strength of ...

Olanitori, L.M. and Olotuah, A.O. (2005) The Effect of Clayey Impurities in Sand on the Crushing Strength of Concrete (A Case Study of Sand in Akure Metropolis, Ondo State, Nigeria). 30th Conference on Our World in Concrete and Structures, Singapore, 23

Effect of Silt Content on the Strength Property of ...

Effect of silt fines on the durability properties of concrete. Silt fines are fine aggregate particles smaller than the 75 m (No. 200) sieve. The compressive strength, however, when silt fine content is small than 5%, increases only 1 MPa.

Drying induced effects on the residual strength of ...

Drying induced effects on the residual strength of remoulded clays V. Merchán, J. Vaunat E. Romero ... In order to study the effects of high suction on the residual shear strength of clayey materials, ... no inter-aggregate porosity is observed. Figure 10a shows a sample prepared at plastic

The effect of size on the strength of coarse rock ...

aggregate strength [17,26], which is the origin of crushing and size effect. Extending the work of McDowell and Bolton [29] on the micro-mechanics of particle breakage, Frossard [12] treated theoretically the problem of the size effect in granular materials. This method predicts the size effect on the rockfill shear strength with

Drying induced effects on the residual strength of ...

Drying induced effects on the residual strength of remoulded clays V. Merchán, J. Vaunat E. Romero ... In order to study the effects of high suction on the residual shear strength of clayey materials, ... no inter-aggregate porosity is observed. Figure 10a shows a sample prepared at plastic

PROPERTIES OF DIFFERENT ARTIFICIAL LIGHTWEIGHT

strength. Aggregate crushing value (ACV) is used to identify aggregate crushing strength. The ACV test was conducted in this study according to BS 812: Part 110:1990. The plastic aggregates and NA that passed through a 14.0 mm sieve and then through a 10.0 mm sieve were used. Then, a measuring cylinder was filled with three layers of aggregate ...

THE CORRELATION BETWEEN AGGREGATE SHAPE AND

effect of aggregate shape to the hardened concrete properties. The strength and the stiffness of coarse aggregate directly influence the behavior of hardened concrete. Although in normal concrete, strength is controlled by the paste or by the transition zone between paste and aggregate, the strength

STRENGTH PROPERTIES OF ROCKS AND ROCK MASSES 1 ...

In general, compared to intact rock, a rock mass has reduced tensile strength (almost zero), and reduced shear strength especi ally along discontinuity planes. Furthermore, if a rock mass is cut by directional joint sets , the rock mass strength is anisotropic. Rock mass strength is scale dependent and varies with the volume of rock under ...

A STUDY ON RECYCLED CONCRETE AGGREGATES

recycled aggregate and of the new concrete made from it, with nearly 100% of aggregate replacement, were tested. The properties of the concrete made with recycled aggregates were inferior to those of concrete made with virgin aggregates. Effects of crushing age we re moderate: concrete made with aggregates crushed at age 3 days

Effect of Aggregates on the Properties of Concrete ...

The bond strength depends upon the strength of cement paste and on the properties of aggregate surface as well. Bond strength is found to increase with the age of concrete. 2. Crushing Strength of Aggregate: The compressive strength of concrete cannot exceed that of the aggregate used therein.

Effects of Sand Quality on Compressive Strength of ...

Olanitori, L.M. and Olotuah, A.O. (2005) The Effect of Clayey Impurities in Sand on the Crushing Strength of Concrete (A Case Study of Sand in Akure Metropolis, Ondo State, Nigeria). 30th Conference on Our World in Concrete and Structures, Singapore, 23-24 August 2005.

Comparison of different forms of gravel as aggregate in ...

studied by [9]. They compared the effect of aggregate size on the compressive strength of normal-weight concrete and lightwei ght concrete specimens in order to trace the size-effect trend. The contribution of aggregate size on the compressive strength and void ratio for different binder strengths was investigated by [10].

HOW AGGREGATE PROPERTIES AFFECTS CONCRETE PROPERTIES ...

Feb 15, 2019  Aggregate crushing value gives a relative measure of the resistance of an aggregate to crushing under a gradually applied compressive load. The aggregate crushing value should not exceed 45% for aggregate used for concrete other than for wearing surfaces, and 30 % for concrete for wearing surfaces, such as runways, roads for pavements.

[PDF] Effect of Aggregate Properties on the Crushing ...

This paper studied the effect of aggregate properties on the crushing strength of concrete. In order to achieve the study objective, three types of coarse aggregates, brick khoa, shingles stone, and black stone were used to test. And the test results show that concrete made from black stone has the highest workability followed by shingles stone brick khoa of aggregates.

Effect of Cement Content and Size of Coarse Aggregate on ...

The effects of size of coarse aggregate and cement content on the compressive strength of brick aggregate concrete have been reported in this paper. A total of 108 numbers of concrete cylinder (150mm×300mm) were tested using six ... crushing strength of the specimen. The tests were conducted following ASTM C39 testing standard [13]. 3. TEST ...

Soil stabilisation - SlideShare

Nov 20, 2016  Each aggregate is thus enveloped all round in the compacted soil and is thus protected from the crushing effect of traffic. This enables the soft aggregate to retain its strength and angular character for an indefinite period . ... The aluminous and siliceous materials in the clayey soil will react with the lime in presence of water to form ...

Compressive Strength of Concrete Using Sawdust as

compressive strength were 57.5%, 68.1%, 83.7%,and 87.3% respectively. The results of the study indicate that both the density and compressive strength of concrete decreased as the percentage replacement increased but replacement of sand by sawdust produced a higher percentage reduction in compressive strength than in density.