Effect of sand content on engineering properties of fly ash-slag based strain hardening geopolymer composites

نویسندگان

چکیده

Strain hardening geopolymer composite (SHGC) is a tailored group of sustainable high-performance fibre reinforced composites with strain behaviour and ultra-high ductility. This paper experimentally investigates the effect fine silica sand content (0–40% by weight binder) on engineering properties fly ash-slag based SHGC cured at ambient temperature, including workability, setting time, drying shrinkage, compressive strength, flexural strength as well deflection that particularly emphasised. The results indicate all specimens exhibit characteristics along large multiple microcracks distributed over tensile side specimens. widths are within 300 μm mostly smaller than 45 μm. flowability, shrinkage reduce increase early ages up to 28 d. However, d, incorporation 20 wt% increases toughness SHGC, but further 40 in decrease toughness.

برای دانلود باید عضویت طلایی داشته باشید

برای دانلود متن کامل این مقاله و بیش از 32 میلیون مقاله دیگر ابتدا ثبت نام کنید

اگر عضو سایت هستید لطفا وارد حساب کاربری خود شوید

منابع مشابه

ALKALI Activated FLY-ASH Based Geopolymer Concrete

Considering the increasing demand for developing alternative construction materials, due to the growing environmental concerns, this paper discusses the feasibility of alkali activated geo-polymer concrete, as a future construction material. The main objective of this study involves observation of structural behaviours of the fresh fly ash-based geo-polymer concrete, understanding the basic mix...

متن کامل

Fly Ash-Based Geopolymer Mortar Incorporating Bottom Ash

This paper presents the results of study on effect of various parameters on mechanical properties of fly ash-based geopolymer mortar with bottom ash as partial or full replacement for sand. Compressive strength of samples with 10% bottom ash (BA) was comparable to those with only sand. Further increase in bottom ash content decreased the compressive strength. However, the reverse tendency occur...

متن کامل

the washback effect of discretepoint vs. integrative tests on the retention of content in knowledge tests

در این پایان نامه تاثیر دو نوع تست جزیی نگر و کلی نگر بر به یادسپاری محتوا ارزیابی شده که نتایج نشان دهندهکارایی تستهای کلی نگر بیشتر از سایر آزمونها است

15 صفحه اول

In Situ Elevated Temperature Testing of Fly Ash Based Geopolymer Composites

In situ elevated temperature investigations using fly ash based geopolymers filled with alumina aggregate were undertaken. Compressive strength and short term creep tests were carried out to determine the onset temperature of viscous flow. Fire testing using the standard cellulose curve was performed. Applying a load to the specimen as the temperature increased reduced the temperature at which ...

متن کامل

ذخیره در منابع من


  با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید

ژورنال

عنوان ژورنال: Journal of building engineering

سال: 2021

ISSN: ['2352-7102']

DOI: https://doi.org/10.1016/j.jobe.2020.101951