权益分类	功能权益	普通用户	{{item.name}}会员
{{category.name}}	{{benefitItem.name}}

CAREER: Mechanisms of Hydration Kinetics and Property Development in Activated Slag and Fly Ash Multiphase Sustainable Binder Systems

职业：活性渣和粉煤灰多相可持续粘结剂系统的水合动力学和性能发展机制

基本信息

批准号：
1055641
负责人：
Sulapha Peethamparan
金额：
$ 40万
依托单位：
Clarkson University
依托单位国家：
美国
项目类别：
Standard Grant
财政年份：
2011
资助国家：
美国
起止时间：
2011-03-01 至 2017-02-28
项目状态：
已结题

来源：
https://www.nsf.gov/awardsearch/showAward?AWD_ID=1055641&HistoricalAwards=false
关键词：
CAREER Mechanisms Hydration Kinetics Property

项目摘要

The objective of this Faculty Early Career Development (CAREER) Program award is to investigate the hydration mechanism of activated ground granulated blast furnace slag and fly ash for designing binder systems with improved performance. The mechanism of dissolution of slag and fly ash in alkaline medium, product phase nucleation, growth and diffusion, and interdependence of hydration of individual phases will be determined using different characterization techniques. Methods for modifying reaction kinetics of the activated binders, by influencing the type and rate of product phase nucleation will also be explored. Analytical hydration models based on nucleation and growth principles, and chemical kinetics will be developed for activated binders considering the multi-phase, multi-stage nature of hydration in these systems. The educational plan in this project is strongly integrated with research component through research integrated broader curriculum development, development of K-12 outreach program integrating proposed research, and diversity initiative through minority student recruitments. The research is to understand the fundamental mechanism of the reaction kinetics of slag and fly ash activated systems, and the results will promote alternative sustainable construction materials with better performance, lower CO2 foot print and lower embodied energy. It is also a crucial step toward engineering this revolutionary concrete for increased acceptance in the field. The hydration model, incorporating the effect of complexities due to multi-phase/multi-stage nature of the activated systems, will be a new development. Preparing civil engineering students as tomorrow?s technological leaders is envisioned through the proposed advancement in civil engineering curriculum.

该学院早期职业发展（CAREER）计划奖的目的是研究活化的粒化高炉矿渣和粉煤灰的水化机制，以设计具有改进性能的粘合剂系统。矿渣和粉煤灰在碱性介质中的溶解机制，产物相的成核、生长和扩散，以及各个相的水化相互依赖性，将使用不同的表征技术来确定。还将探索通过影响产物相成核的类型和速率来修改活化粘合剂的反应动力学的方法。分析水化模型的基础上的成核和生长的原则，和化学动力学将被开发为考虑在这些系统中的水化的多相，多阶段的性质的活化粘合剂。该项目的教育计划通过研究整合更广泛的课程开发，K-12外展计划的发展，以及通过少数民族学生招聘的多样性倡议，与研究组成部分紧密结合。本研究旨在了解矿渣和粉煤灰活化体系反应动力学的基本机理，其结果将促进替代可持续建筑材料具有更好的性能，更低的CO2足迹和更低的隐含能量。这也是朝着设计这种革命性的混凝土以提高该领域的接受度迈出的关键一步。由于活化体系的多相/多阶段性质，水化模型将是一个新的发展。为明天的土木工程专业学生做准备？的技术领导人设想通过在土木工程课程的拟议进步。

项目成果

期刊论文数量（7）

专著数量（0）

科研奖励数量（0）

会议论文数量（0）

专利数量（0）

Temperature and activator effect on early-age reaction kinetics of alkali-activated slag binders

DOI：
10.1016/j.conbuildmat.2016.03.098
发表时间：
2016-06-15
期刊：
CONSTRUCTION AND BUILDING MATERIALS
影响因子：
7.4
作者：
Gebregziabiher, Berhan Seium;Thomas, Robert J.;Peethamparan, Sulapha
通讯作者：
Peethamparan, Sulapha

Alkali-activated concrete: Engineering properties and stress–strain behavior

DOI：
10.1016/j.conbuildmat.2015.04.039
发表时间：
2015-09
期刊：
Construction and Building Materials
影响因子：
7.4
作者：
R. Thomas;S. Peethamparan
通讯作者：
R. Thomas;S. Peethamparan

On drying shrinkage in alkali-activated concrete: Improving dimensional stability by aging or heat-curing

DOI：
10.1016/j.cemconres.2016.10.003
发表时间：
2017-01-01
期刊：
CEMENT AND CONCRETE RESEARCH
影响因子：
11.4
作者：
Thomas, R. J.;Lezama, Diego;Peethamparan, Sulapha
通讯作者：
Peethamparan, Sulapha

Stepwise regression modeling for compressive strength of alkali-activated concrete

DOI：
10.1016/j.conbuildmat.2017.03.006
发表时间：
2017-06
期刊：
Construction and Building Materials
影响因子：
7.4
作者：
R. Thomas;S. Peethamparan
通讯作者：
R. Thomas;S. Peethamparan

Influence of starting material on the early age hydration kinetics, microstructure and composition of binding gel in alkali activated binder systems

DOI：
10.1016/j.cemconcomp.2013.11.010
发表时间：
2014-04-01
期刊：
CEMENT & CONCRETE COMPOSITES
影响因子：
10.5
作者：
Deir, Elisabeth;Gebregziabiher, Berhan S.;Peethamparan, Sulapha
通讯作者：
Peethamparan, Sulapha

DOI：
{{ item.doi }}
发表时间：
{{ item.publish_year }}
期刊：
{{ item.journal_name }}
影响因子：
{{ item.factor }}
作者：
{{ item.authors }}
通讯作者：
{{ item.author }}

数据更新时间：{{ journalArticles.updateTime }}

作者：
{{ item.author }}

数据更新时间：{{ monograph.updateTime }}

作者：
{{ item.author }}

数据更新时间：{{ sciAawards.updateTime }}

作者：
{{ item.author }}

数据更新时间：{{ conferencePapers.updateTime }}

作者：
{{ item.author }}

数据更新时间：{{ patent.updateTime }}

Sulapha Peethamparan其他文献

Mechanistic evaluation of NO2 sequestered recycled concrete aggregates as anodic corrosion inhibitors in chloride-exposed OPC concrete: insights from kinetics and performance assessment

DOI：
10.1617/s11527-025-02625-w
发表时间：
2025-04-16
期刊：
MATERIALS AND STRUCTURES
影响因子：
3.900
作者：
Shubham Mishra;Erandi Ariyachandra;Sulapha Peethamparan;Alexander Orlov
通讯作者：
Alexander Orlov

Shrinkage behavior of alkali-activated materials using ground bottom ashes, calcined clays, volcanic ashes, and fluidized bed combustion ashes as precursors

以磨细底灰、煅烧粘土、火山灰和流化床燃烧灰为前驱体的碱激活材料的收缩行为

DOI：
10.1016/j.cscm.2024.e04033
发表时间：
2024-12-01
期刊：
Case Studies in Construction Materials
影响因子：
6.600
作者：
Roshan Muththa Arachchige;Sourav Thapa;Jan Olek;Farshad Rajabipour;Sulapha Peethamparan
通讯作者：
Sulapha Peethamparan