Recycled Concrete Aggregate – A Viable Aggregate Source For Concrete Pavements by James Trevor Smith A thesis presented to the University of Waterloo in fulfillment of the thesis requirement for the degree of Doctor of Philosophy in Civil Engineering Waterloo, Ontario, Canada, 2009 ©James Trevor Smith 2009
and the desired effects on the concrete (Helmuth 1987 and ACI 232 1996). SLAG Ground granulated blast-furnace slag (Fig. 3-5), also called slag cement, is made from iron blast-furnace slag; it is a nonmetallic hydraulic cement consisting essentially of sili-cates and aluminosilicates of calcium developed in a
Cement for their generosity and supply of all concrete constituent materials used for this study. I would like to thank the PhD examination committee members, Professor K. Riding, Professor D. Panesar, Professor K. Peterson, and Professor F. Azhari for their comments.
Tons of abrasive blasting wastes (ABW) are produced each year from the removal of old paint from the ships. The abrasives contain heavy metals which are considered hazardous by the Toxicity Characteristic (TC) criteria. This research describes an investigation of cement-based solidification and stabilization (S/S) of the spent abrasives from ship repair, which is mainly …
ii "Sulfate Resistance and Properties of Portland-Limestone Cements" By Amir Mohammad Ramezanianpour A thesis submitted in conformity with the requirements for the degree of
tive model of the strength of concrete as a function of the amount of seven different ingredients (cement, slag, fly ash, water, plasticizer, coarse aggregate and fine aggre- gate),andtheageoftheconcrete(Yeh,1998).
Jul 02, 2009· A lot of money is spent every year on the restoration of the concrete on structures and manufactured elements deteriorated by different types of degradation. Degradation of concretes is attributable to inadequate mix-design; anyway some environments are so aggressive that requiring additional care in order to increase durability. One of the most aggressive …
[23] M. Dal Ri, Effects of the addition of hydrated lime in concrete with high levels of mineral admixture on chloride penetration and aqueous pores of the concrete, PhD thesis, (2002). [24] A. Younsi, et al., Performance-based design and carbonation of concrete with high fly ash content, Cement and Concrete Composites. 33 (2011) 993-1000.
Hydraulic cement concrete is a cement and water paste in which aggregate particles are embedded. Aggregate is granular material such as sand, gravel, crushed stone, blast-furnace slag, and lightweight aggregates that usually occupies approxi-mately 60 to 75% of the volume of concrete. Aggregate properties significantly affect the workability of ...
Download full-text PDF ... ' Early Age Strength and Creep of Slag Cement Concretes ', PhD thesis, ... The influence of slag content on compressive strengths of High Volumes Slag Concrete (cement ...
The combination of robodust and iron slag replacement with fine aggregate and cement respectively has shown good increase in mechanical properties of concrete in contrast to conventional concrete ...
The cementitious properties of GGBFS and AAS promote their usage in the concrete matrix. Partial inclusion of slag for cement produces OPC or fully replaced by AAS is …
The hydration of cement in mass concrete structures produces high temperature.The temperature in the core of the mass concrete structures is higher than the temperature in the surfaces that are closer to ambient air. This temperature gradient leads to the development of thermal stresses, which may cause cracking if thermal stresses exceed the tensile strength of …
Construction industry uses Portland cement which is known to be a heavy contributor to the CO2 emissions and environmental damage. Incorporation of industrial wastes like demolished old concrete, silica fume (SF) and fly ash (FA) as supplementary cementing materials (SCMs) could result in a substantial reduction of the overall CO2 footprint of the final concrete product.
The work presented in this thesis involves the study of deterioration of concrete caused by using deicers. This thesis includes two papers resulting from the study: 1). Scaling resistance and evaluation of concrete containing slag cement and 2). Effect of the Interfacial Transition Zone on Joint Deterioration of Concrete Pavements. In the first paper, an alternative test method was …
PhD THESIS INDUSTRY. Long-term outlook of GP reagents? Fly ash Slag MK-750 ... New wide variety of feedstocks also builds on e.g. GEOCISTEM, "synthetic lava", "manufactured slag" ... Portland Cement Paste Demolished Concrete Reagent (Ca, Na, K)-PSMS Paste (ambient cure)
This PhD thesis focuses on the use of blast-furnace slag (BFS) as cement replacing material. Blast-furnace slag, a by-product of the steel production, obtains latent-hydraulic properties after rapid cooling and can thus replace clinker in cement.
Effect of Cement Content on Concrete Performance A thesis submitted in partial fulfillment of the requirements for the degree of Master of Science in Civil Engineering by Caleb LeBow University of Arkansas Bachelor of Science in Civil Engineering, 2017 December 2018 University of Arkansas This thesis is approved for recommendation to the ...
The term concrete refers to a mixture of aggregates, usually sand, and either gravel or crushed stone, held together by a binder of cementitious paste. The paste is typically made up of portland cement and water and may also contain supplementary cementing materials (SCMs), such as fly ash or slag cement, and chemical admixtures (Figure 1-1).
Approval of the thesis: INVESTIGATION OF THE PROPERTIES OF PORTLAND SLAG CEMENT PRODUCED BY SEPARATE GRINDING AND INTERGRINDING METHODS submitted by ÇA ĞLAR GEVEN in partial fulfillment of the requirements for the degree of Master of Science in Cement Engineering Department, Middle East
Abstract. This study evaluated the use of by-product ferronickel slag as fine aggregate in concrete. It was found that mortar and concrete of good strength and durability could be produced by the combined use of ferronickel slag as a partial replacement of sand and fly ash as a partial replacement of cement.
Ordinary Portland cement concrete (OPCC) is widely utilised as a major construction material over the past century. However, the manufacturing of ordinary Portland ... such as blast furnace slag, fly ash and metakaolin, by an ... support throughout my PhD study. This thesis would not be achieved without the invaluable guidance and advice from him.
bachelor degree thesis compressive strength of pervious concrete made of nickel slag presented by: brando mahlon ramo d111 14 801 civil engineering department bachelor degree program faculty of engineering hasanuddin university makassar 2021
- Admixtures for Concrete SUPERVISED THESIS PhD: 11 (2 in progress & 9 completed), Masters: 9 (7 completed & 2 in progress); ... Development of blended cement, concrete and other construction materials (high Performance / self- ... Ferrochrome Slag Based Geopolymer Concrete, International Ceramics, 42 (1), 1254-1260, ...
IMPROVING THE SOUND ABSORBING CAPACITY OF PORTLAND CEMENT CONCRETE PAVEMENTS USING RECYCLED MATERIALS BY JONATHAN GENE PITRE Bachelor of Science, University of New Hampshire, 2000 THESIS Submitted to the University of New Hampshire in Partial Fulfillment of the Requirements for the Degree of Master of Science in …
This master thesis presents the effects of fly ash on the properties of alkali activated slag concrete, com-monly referred as Geopolymer concrete (GPC). Cement manufacturer are major producers of CO 2 which negatively affects the environment. Due to the increased construction activities and environmental con-
application of slag cement. The intelligent combining of mineral oxides, which are found in clinker, slag, fly ashes etc., is designated as mineral oxide engineering. ... His PhD thesis was on the heat and mass transfer in ... • Though cement and concrete are produced from non-renewable mineral resources,
This study deals with the use of ground granulated slag in substitution to cement (up to 40% of by weight) to produce slag-cement concrete. The physical and mechanical properties (water absorption capacity, porosity and compressive strength) of
design a concrete mix for a particular strength and durability. Following are the some methods available for concrete design mix. As IS method more common and precise, therefore for this dissertation work IS Method was adopted to calculate the proportions of ingredients of concrete. Grade of Concrete M30 Target strength 38.0 MPa Cement Content ...
University of Pretoria QHW SHAW PhD THESIS APPENDIX D D.1 APPENDIX D D. LIST OF REFERENCES Reference Related Subject Applicable Chapters Alexander MG. Deformation Properties of Blended Cement Concretes Containing Blastfurnace Slag and Condensed Silica Fume. Advances in Cement Research. Vol. 6. No. 22.