The Effect of Fine-Ground Glass on the Hydration Process and Properties of Alumina-Cement-Based Composites

This paper discusses studies regarding the impact of fine-ground glass additives on the hydration and properties of alumina cement pastes and mortars. Fine-ground glass was added to pastes and mortars instead of high-alumina cement and calcium aluminate cement in quantities of 5% and 10%. The findings are inconclusive as to the impact of glass on the properties of tested alumina cement types. The effect produced via the addition of glass instead of cement depends on the type of alumina cement used. Adding fine-ground glass to high-alumina cement enhances the paste’s density while improving paste and mortar strength. Using the same additive for calcium aluminate cement reduces its density and strength. The addition of glass to high-alumina cement adversely affects its strength at higher temperatures.

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Effect of different calcium aluminate hydrates on ettringite formation and expansion of high alumina cement-based expansive cement pastes

Cement and Concrete Research ◽

10.1016/s0008-8846(96)85029-0 ◽

1996 ◽

Vol 26 (3) ◽

pp. 417-426 ◽

Cited By ~ 12

Author(s):

Yan Fu ◽

Jian Ding ◽

J.J. Beaudoin

Keyword(s):

Calcium Aluminate ◽

High Alumina ◽

Cement Pastes ◽

Alumina Cement ◽

High Alumina Cement ◽

Ettringite Formation ◽

Expansive Cement

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Effect of different calcium aluminate hydrates on ettringite formation and expansion of high alumina cement-based expansive cement pastes

Cement and Concrete Research ◽

10.1016/0008-8846(96)00007-5 ◽

1996 ◽

Vol 26 (3) ◽

pp. 417-426 ◽

Cited By ~ 1

Author(s):

F Yan

Keyword(s):

Calcium Aluminate ◽

High Alumina ◽

Cement Pastes ◽

Alumina Cement ◽

High Alumina Cement ◽

Ettringite Formation ◽

Expansive Cement

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Structure-property relation and Weibull analysis of calcium aluminate cement pastes

Materials Characterization ◽

10.1016/j.matchar.2017.10.010 ◽

2017 ◽

Vol 134 ◽

pp. 9-17 ◽

Cited By ~ 6

Author(s):

John F. Zapata ◽

Maryory Gomez ◽

Henry A. Colorado

Keyword(s):

Calcium Aluminate ◽

Calcium Aluminate Cement ◽

Weibull Analysis ◽

Structure Property ◽

Cement Pastes ◽

Property Relation ◽

Aluminate Cement

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The Microstructure of High Strength Cement Pastes

MRS Proceedings ◽

10.1557/proc-42-31 ◽

1984 ◽

Vol 42 ◽

Cited By ~ 7

Author(s):

W. Sinclair ◽

G. W. Groves

Keyword(s):

High Strength ◽

Water Soluble ◽

Organic Polymer ◽

High Alumina ◽

Cement Pastes ◽

Alumina Cement ◽

High Alumina Cement ◽

Transmission Electron ◽

Fibrillar Morphology ◽

Shear Mixing

AbstractThe microstructures of high strength pastes of OPC and high alumina cements prepared by the high shear mixing of a low water/cement ratio paste with water soluble polymers have been studied by transmission electron microscopy. In the case of high strength OPC, the usual hydration products are present, however, the CSH gel lacks the fibrillar morphology often observed in conventional cements. Pastes based on high alumina cement do not contain the normal crystalline calcium aluminate hydrates but a small quantity of gel containing the organic polymer forms a continuous network structure bonding clinker grains. Microanalysis of the polymer phase in high alumina cement revealed the presence of Ca and Al while Ca-rich interstitial gel material was found in OPC pastes.

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The Wastes of Sanitary Ceramics as Recycling Aggregate to Special Concretes

Materials ◽

10.3390/ma11081275 ◽

2018 ◽

Vol 11 (8) ◽

pp. 1275 ◽

Cited By ~ 6

Author(s):

Paweł Ogrodnik ◽

Jacek Szulej ◽

Wojciech Franus

Keyword(s):

Calcium Aluminate ◽

Compression Strength ◽

Mechanical Tests ◽

Calcium Aluminate Cement ◽

Phase Content ◽

Temperature Load ◽

Strength Tests ◽

Sample Structure ◽

The Impact ◽

Aluminate Cement

This article presents the results of research on the wastes of sanitary ceramics as an aggregate to concretes. The case of high temperature load was taken into account. Six concrete mixes were designed on Portland and calcium aluminate cement with various content of aerating admixture. Only the ground waste ceramics were used as an aggregate from one of the Polish sanitary ceramics plants. The abrasion test by Boehme blade of the designed concrete was conducted within the frame of study and compression strength tests on the cylindrical samples were performed as well. Some samples were initially annealed at 400 or 800 °C prior to strength tests. In order to determine the impact of annealing on the phase content and the concrete sample structure, the analyses on phase content (XRD—X-ray diffraction) and scanning electron microscopy (SEM) were conducted. The tests on compression strength demonstrated that there is considerable resistance of concrete containing ceramic aggregate and calcium aluminate cement to high temperatures. Abrasion tests confirmed that selected mixes have a high resistance to abrasion and they can be applied as a concrete coating. The possibility of ceramic cullet use as an aggregate to special concretes has been confirmed by the conducted research on specific features. Taking into consideration the available literature, the article presents widely conducted research in the area of the internal structure of concrete designed on the basis of recycled ceramic aggregate, the phase content of individual components, and basic mechanical tests both in normal temperatures and under thermal stress.

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