modification of fresh state properties of portland cement
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Modification of fresh state properties of Portland cement ...

2021-10-31  Modification of fresh state properties of Portland cement-based mortars by guar gum derivatives By Alexandre Govin, Marie-Claude Bartholin and Philippe Grosseau Synopsis: Viscosity-modifying admixtures (VMA) are often introduced in the formulation of modern factory-

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Modification of fresh state properties of Portland cement ...

Modification of fresh state properties of Portland cement-based mortars by guar gum derivatives July 2015 Conference: 11th Superplasticizers and other Chemical Admixtures in Concrete

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Modification of Fresh State Properties of Portland Cement ...

2015-6-1  Title: Modification of Fresh State Properties of Portland Cement-Based Mortars by Guar Gum Derivatives Author(s): Alexandre Govin, Marie-Claude Bartholin, and Philippe Grosseau Publication: Symposium Paper Volume: 302 Issue: Appears on pages(s): 315-332 Keywords: cement; HydroxyPropyl Guar; mortar; rheology; water retention Date: 6/1/2015 Abstract: ...

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Modification of fresh state properties of Portland cement ...

Modification of fresh state properties of Portland cement-based mortars by guar gum derivatives Alexandre Govin 1, 2, 3, * Marie-Claude Bartholin 1, 2, 3 Philippe Grosseau 1, 2,

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Modification of fresh state properties of Portland cement ...

Related papers. Page number / 13 13

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Effect of Guar Gum Derivatives on Fresh State Properties ...

Govin et al. [33] studied the effect of guar gum derivatives on fresh state properties of Portland cement-based mortars. Otoko and Ephraim [34] investigated the palm liquor produced from palm ...

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Modification of water retention and rheological properties ...

DOI: 10.1016/J.CONBUILDMAT.2016.06.125 Corpus ID: 4541654. Modification of water retention and rheological properties of fresh state cement-based mortars by guar gum derivatives @article{Govin2016ModificationOW, title={Modification of water retention and rheological properties of fresh state cement-based mortars by guar gum derivatives}, author={Alexandre Govin and M. C.

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Effects of latex modification on fresh state consistency ...

Effects of latex modification on fresh state consistency, short term strength and long term transport properties of cement mortars ... Densities at fresh state, flexural and compressive strengths at 28 ... were measured with a mercury porosimeter in order to compare the effect of porosity on long term transportation properties of cement mortars.

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Modification of water retention and rheological properties ...

2016-9-30  Water retention (WR) is another essential property of monolayer render at fresh state. Indeed, high water retention improves the cement hydration and limits the absorption of the mixing water by a substrate and thus provides good mechanical and adhesive properties to the mortar [16] , [17] .

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Cement Chemistry and Additives - Schlumberger

2021-7-26  Cement evaluation logs and other cased-hole logs can indicate the strength of the set cement and whether it "s bonded to the cas.ng (far right). The out- come of a cementing job, however, depends ultimately on choosing the appropriate cement and additives to cope with particu lar well conditions. . Portland cement was developed by Joseph Aspdin

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METHOD OF TEST FOR SLUMP OF FRESH PORTLAND

2019-12-4  FRESH PORTLAND CEMENT CONCRETE A. SCOPE This test method, which is a modification of ASTM C143 and AASHTO T-119, is intended to provide the user with a procedure to determine the slump of plastic portland cement concrete. This method is considered applicable to plastic concrete having coarse aggregate up to 1½ in. in size.

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How Concrete is Made - Portland Cement Association

How Concrete is Made. In its simplest form, concrete is a mixture of paste and aggregates, or rocks. The paste, composed of portland cement and water, coats the surface of the fine (small) and coarse (larger) aggregates. Through a chemical reaction called hydration, the paste hardens and gains strength to form the rock-like mass known as concrete.

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Cement Chemistry and Additives - Schlumberger

2021-7-26  Cement evaluation logs and other cased-hole logs can indicate the strength of the set cement and whether it "s bonded to the cas.ng (far right). The out- come of a cementing job, however, depends ultimately on choosing the appropriate cement and additives to cope with particu lar well conditions. . Portland cement was developed by Joseph Aspdin

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CEMENT and CONCRETE TECHNOLOGY - الصفحات الشخصية

2010-3-2  Portland Cement (P.C.) Portland cement is a hydraulic cementcapable of setting, hardening and remains stable under water. It iscomposed of calcium silicates and someamount of gypsum. Blended Portland Cements Blended cement, as defined in ASTM C 595, is a mixture of portland cement and blast furnace slag (BFS) or a "mixture of portland cement ...

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Hydration of Portland Cement - Penn State College of ...

2000-3-17  Hydration of Portland Cement. Introduction Portland cement is a hydraulic cement, hence it derives its strength from chemical reactions between the cement and water. The process is known as hydration. Cement consists of the following major compounds (see composition of cement): Tricalcium silicate, C 3 S; Dicalcium silicate, C 2 S; Tricalcium ...

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Concrete Pavement - Portland Cement Association

There are two methods for paving with concrete—slipform and fixed form. In slipform paving, a machine rides on treads over the area to be paved—similar to a train moving on a set of tracks. Fresh concrete is deposited in front of the paving machine which then

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"Strength and Durability of Concrete: Effects of Cement ...

This research was based on a two-part basic research investigation studying the effects of cement paste-aggregate interfaces (or interfacial transition zones-HZ) on strength and durability of concrete. Part I dealt with the theoretical study and Part II dealt with the experimental. Part I, the theoretical part, illustrates the effect of ITZ on the concrete properties by assuming its elastic ...

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Properties of Concrete - Workability, Setting, Bleeding ...

2017-3-19  Properties of Fresh Concrete. Properties of Hardened Concrete . Fresh Concrete. Fresh concrete is that stage of concrete in which concrete can be moulded and it is in plastic state. This is also called "Green Concrete". Another term used to

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Environmental impacts and decarbonization strategies in ...

2020-9-22  Cement and concrete production. Portland cement is composed of four major oxides: CaO, SiO 2, Al 2 O 3 and Fe 2 O 3, which are sourced from raw materials such as

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Effect of Sand Fines and Water/Cement Ratio on

2019-10-29  combined effect of sand fines and water/cement ratio’s effect on the properties of concrete. This paper seeks to address this gap in literature. Materials and Methods Materials The materials used were crushed granite as coarse aggregate, natural pit sand, ordinary Portland cement and water. Physical properties of the aggregates were analysed.

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METHOD OF TEST FOR SLUMP OF FRESH PORTLAND

2019-12-4  FRESH PORTLAND CEMENT CONCRETE A. SCOPE This test method, which is a modification of ASTM C143 and AASHTO T-119, is intended to provide the user with a procedure to determine the slump of plastic portland cement concrete. This method is considered applicable to plastic concrete having coarse aggregate up to 1½ in. in size.

Get Price

How Concrete is Made - Portland Cement Association

How Concrete is Made. In its simplest form, concrete is a mixture of paste and aggregates, or rocks. The paste, composed of portland cement and water, coats the surface of the fine (small) and coarse (larger) aggregates. Through a chemical reaction called hydration, the paste hardens and gains strength to form the rock-like mass known as concrete.

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Composition of cement - Penn State College of Engineering

2000-3-17  Portland cement gets its strength from chemical reactions between the cement and water. The process is known as hydration. This is a complex process that is best understood by first understanding the chemical composition of cement. Manufacture of cement Portland cement is manufactured by crushing, milling and proportioning the following materials:

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Fresh And Hardened Properties Of Fly Ash Based

2019-7-1  Investigation physical and chemical properties of various materials as cement, fine aggregate, coarse aggregate, copper slag. Fly ash is tested and the properties are compared with each other. Fresh and hardened properties of conventional concrete and

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Hydration of Portland Cement - Penn State College of ...

2000-3-17  Hydration of Portland Cement. Introduction Portland cement is a hydraulic cement, hence it derives its strength from chemical reactions between the cement and water. The process is known as hydration. Cement consists of the following major compounds (see composition of cement): Tricalcium silicate, C 3 S; Dicalcium silicate, C 2 S; Tricalcium ...

Get Price

Properties of Concrete - Workability, Setting, Bleeding ...

2017-3-19  Properties of Fresh Concrete. Properties of Hardened Concrete . Fresh Concrete. Fresh concrete is that stage of concrete in which concrete can be moulded and it is in plastic state. This is also called "Green Concrete". Another term used to

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Measurement of the Rheological Properties of High ...

1999-10-1  The rheological or flow properties of concrete in general and of high performance concrete (HPC) in particular, are important because many factors such as ease of placement, consolidation, durability, and strength depend on the flow properties.

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Environmental impacts and decarbonization strategies in ...

2020-9-22  Cement and concrete production. Portland cement is composed of four major oxides: CaO, SiO 2, Al 2 O 3 and Fe 2 O 3, which are sourced from raw materials such as

Get Price

Effect of Sand Fines and Water/Cement Ratio on

2019-10-29  combined effect of sand fines and water/cement ratio’s effect on the properties of concrete. This paper seeks to address this gap in literature. Materials and Methods Materials The materials used were crushed granite as coarse aggregate, natural pit sand, ordinary Portland cement and water. Physical properties of the aggregates were analysed.

Get Price

Construction and Building Materials - A section of ... - MDPI

Section Information. The Section “Construction and Building Materials” covers the areas of construction and building materials science and engineering, including construction chemistry, building physics, modelling and testing, as well as related crossover fields in relation to their mechanical, physical, chemical, durability and ...

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