NDLI: The influence of aluminum additive on the α-C$

Content Provider	Springer Nature Link
Author	Baltakys, K. Eisinas, A. Dambrauskas, T.
Copyright Year	2015
Abstract	The influence of aluminum additive on the formation of α-C$_{2}$SH and on kinetics of cementitious binder material at early stages of hydration was determined. α-C$_{2}$SH was synthesized in the primary mixtures with CaO/(SiO$_{2}$ + Al$_{2}$O$_{3}$) = 1.5 and Al$_{2}$O$_{3}$/(SiO$_{2}$ + Al$_{2}$O$_{3}$) = 0; 0.025 and 0.05. The hydrothermal synthesis has been carried out in unstirred suspensions under saturated steam pressure in argon atmosphere at 175 °C temperature for 4, 8;,16, 24, 48 and 72 h by applying extra argon gas (10 bar). It was determined that in CaO–SiO$_{2}$·nH$_{2}$O–H$_{2}$O suspensions within 4 h dicalcium silicate hydrates—α-C$_{2}$S hydrate, C–S–H(II) and a low base semi-crystalline C–S–H(I) type calcium silicate hydrate—were formed. Meanwhile, Al$_{2}$O$_{3}$ additive changes the formation mechanism of synthesis products as well as their stability during the isothermal curing. It was observed that hydrogarnets formed after 4 h of hydrothermal treatment remained stable under all experimental conditions. It was determined that the addition of α-C$_{2}$SH–Al in BM sample changed both the heat flow and the total quantity of heat released during early-stage hydration. It was determined that only 5 % of quartz reacts during the first 4.5 h of hydration in both BM samples, and the further reduction of its quantity depends on duration of process. The products of synthesis and hardening were characterized by simultaneous thermal analysis, microcalorimetry and X-ray diffraction analysis.
Starting Page	75
Ending Page	84
Page Count	10
File Format	PDF
ISSN	13886150
Journal	Journal of thermal analysis
Volume Number	121
Issue Number	1
e-ISSN	15882926
Language	English
Publisher	Springer Netherlands
Publisher Date	2015-03-27
Publisher Place	Dordrecht
Access Restriction	One Nation One Subscription (ONOS)
Subject Keyword	α-C$_{2}$S hydrate Calcium silicate hydrate (C–S–H) Hydrothermal synthesis Hydration Microcalorimetry Physical Chemistry Analytical Chemistry Polymer Sciences Inorganic Chemistry Measurement Science and Instrumentation
Content Type	Text
Resource Type	Article
Subject	Physical and Theoretical Chemistry Condensed Matter Physics

Sl.	Authority	Responsibilities	Communication Details
1	Ministry of Education (GoI), Department of Higher Education	Sanctioning Authority	https://www.education.gov.in/ict-initiatives
2	Indian Institute of Technology Kharagpur	Host Institute of the Project: The host institute of the project is responsible for providing infrastructure support and hosting the project	https://www.iitkgp.ac.in
3	National Digital Library of India Office, Indian Institute of Technology Kharagpur	The administrative and infrastructural headquarters of the project	Dr. B. Sutradhar bsutra@ndl.gov.in
4	Project PI / Joint PI	Principal Investigator and Joint Principal Investigators of the project	Dr. B. Sutradhar bsutra@ndl.gov.in Prof. Saswat Chakrabarti will be added soon
5	Website/Portal (Helpdesk)	Queries regarding NDLI and its services	support@ndl.gov.in
6	Contents and Copyright Issues	Queries related to content curation and copyright issues	content@ndl.gov.in
7	National Digital Library of India Club (NDLI Club)	Queries related to NDLI Club formation, support, user awareness program, seminar/symposium, collaboration, social media, promotion, and outreach	clubsupport@ndl.gov.in
8	Digital Preservation Centre (DPC)	Assistance with digitizing and archiving copyright-free printed books	dpc@ndl.gov.in
9	IDR Setup or Support	Queries related to establishment and support of Institutional Digital Repository (IDR) and IDR workshops	idr@ndl.gov.in

The influence of Cd-impure gyrolite on the hydration of composite binder material based on α-C$_{2}$S hydrate

The stability of formed CaF$_{2}$ and its influence on the thermal behavior of C–S–H in CaO–silica gel waste-H$_{2}$O system

Physically and chemically bound H$_{2}$O in the α-C$_{2}$S hydrate structure

Quantitative analysis of accelerated carbonation products of the synthetic calcium silicate hydrate(C–S–H) by QXRD and TG/MS

Heat release during the hydration of calcinated α-C$_{2}$SH and its mixture with killalaite

A study on the thermal stability of kilchoanite synthesized under hydrothermal conditions

Thermal, spectral and AFM studies of calcium silicate hydrate-polymer nanocomposite material

Thermal properties and application of silica gel waste contaminated with F$^{−}$ ions for C-S-H synthesis

Tribochemical and thermal activation of α-c$_{2}$s hydrate as precursor for cementitious binders

The influence of aluminum additive on the α-C$_{2}$S hydrate formation process

Similar Documents

The influence of Cd-impure gyrolite on the hydration of composite binder material based on α-C$_{2}$S hydrate

The stability of formed CaF$_{2}$ and its influence on the thermal behavior of C–S–H in CaO–silica gel waste-H$_{2}$O system

Physically and chemically bound H$_{2}$O in the α-C$_{2}$S hydrate structure

Quantitative analysis of accelerated carbonation products of the synthetic calcium silicate hydrate(C–S–H) by QXRD and TG/MS

Heat release during the hydration of calcinated α-C$_{2}$SH and its mixture with killalaite

A study on the thermal stability of kilchoanite synthesized under hydrothermal conditions

Thermal, spectral and AFM studies of calcium silicate hydrate-polymer nanocomposite material

Thermal properties and application of silica gel waste contaminated with F$^{−}$ ions for C-S-H synthesis

Tribochemical and thermal activation of α-c$_{2}$s hydrate as precursor for cementitious binders

The influence of aluminum additive on the α-C$_{2}$S hydrate formation process