Consistency, setting, and strength gain characteristics of a “low porosity” Portland cement paste

Diamond, Sidney; Gomez-Toledo, Carlos

doi:10.1016/0008-8846(78)90044-3

Cited by 11 publications

(4 citation statements)

References 7 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…This is a new generation in the concrete family. The importance of producing very low w/c paste with self compaction property has been presented since the superplasticizers made the pronounced impact on the concrete industry [50]. The technology has taken off more significantly in the 90's and is now becoming a very popular method [51].…”

Section: Self Compacting Concrete (Scc)mentioning

confidence: 99%

Sustainability and Emerging Concrete Materials and Their Relevance to the Middle East

Kayali¹,

Haque²,

Khatib³

2008

TOBCTJ

View full text Add to dashboard Cite

Judicial use of cement coupled with the beneficial employment of certain so called 'industrial waste products' constitute the backbone of a sustainable concrete technology. The use of fly ash, ground granulated blast furnace slag (GGBFS), rice husk ash, condensed silica fume (CSF), metakaolin and recycled concrete, bricks and other materials are all gaining varying degrees of acceptance from engineers and the society. Careful design that considers long-term durability coupled with the use of 'waste' materials other than cement and natural aggregates can further enhance the sustainability of structures. High performance concrete (HPC) which is becoming the concrete of choice for rapidly emerging new and strong economies, can provide the opportunity for sustainable design and material use. The inclusion of industrial byproducts in the production of high-strength-high-performance concrete is a significant contribution to sustainable industry. As research publications abound with results showing benefits of certain materials whether from waste products or otherwise, it is the duty of the engineer to judge whether one or all of such materials should be used. A judgment, as this, needs to be based on the particular circumstances that dominate the building in question.

show abstract

Section: Self Compacting Concrete (Scc)mentioning

confidence: 99%

Sustainability and Emerging Concrete Materials and Their Relevance to the Middle East

Kayali¹,

Haque²,

Khatib³

2008

TOBCTJ

View full text Add to dashboard Cite

show abstract

“…In the presence of a water-reducing agent (aromatic sulphonate) [299] the formation of ettringite, in Portland cement, was suppressed and also the hexagonal plates of CH which appear in early hydration. The microstructure of low porosity Portland cement paste with lignosulphonate and an alkali carbonate or bicarbonate instead of gypsum as admixtures [300] was described. Types I and II C-S-H gel were generally not observed in these pastes.…”

Section: Electron and Optical Microscopy 757mentioning

confidence: 99%

Electron and Optical Microscopy

Ben‐Dor

1983

Advances in Cement Technology

View full text Add to dashboard Cite

“…cement paste and aggregate. Cement pastes with w/c= 0.30 can have compressive strength above 100Nmm -z at 28 days curing (Rossler and Odler 1985;Diamond and Gomez-Toledo 1978). On the other hand, good aggregates have strengths more than 200Nmm -2 (Massazza and Costa 1986).…”

Section: Introductionmentioning

confidence: 99%

Interface-durability correlations in concrete

James

1991

Bull. Mater. Sci.

View full text Add to dashboard Cite

The performance of concrete is dictated mostly by the characteristics of the transition zone. Internal bleeding leads to a higher effective water/cement ratio and hence a more open, porous structure at the cement/aggregate interface. Besides, more of AFt, AFm and CH phases and halides, sulphate, alkalis and other admixture components and less of C-S-H are found in this zone. These cause the deterioration of the reinforcing materials like steel, silicious aggregates, glass and natural fibres. The orientation of the crystalline phases parallel to the interface also weakens the mortar. The porosity and related effects are considerably modified by the use of plasticizers, fine pozzolanic additives and reduced water cement ratio. The mechanism of interfacial structure formation and their resulting effects on the reinforcement are discussed together with the possible precautionary measures.

show abstract

Consistency, setting, and strength gain characteristics of a “low porosity” Portland cement paste

Cited by 11 publications

References 7 publications

Sustainability and Emerging Concrete Materials and Their Relevance to the Middle East

Sustainability and Emerging Concrete Materials and Their Relevance to the Middle East

Electron and Optical Microscopy

Interface-durability correlations in concrete

Contact Info

Product

Resources

About