PMID- 33097994
OWN - NLM
STAT- MEDLINE
DCOM- 20211125
LR  - 20211125
IS  - 1614-7499 (Electronic)
IS  - 0944-1344 (Linking)
VI  - 28
IP  - 45
DP  - 2021 Dec
TI  - Experimental investigation on water absorption capacity of RHA-added cement 
      concrete.
PG  - 63623-63628
LID - 10.1007/s11356-020-11339-1 [doi]
AB  - In the recent past, partial replacement of cement by rice husk ash (RHA) in 
      concrete is a prime focus of global researchers for sustainable development in 
      energy and environmental aspects. The present investigation aims at testing the 
      water absorption capacity of the different types and sizes of the 
      RHA-incorporated cement concrete. A design of experiments (DOE) was conducted 
      using the Taguchi method to develop an L(27) matrix to assess the individual 
      effects of each variable. From the experimental study, decreasing the RHA size 
      and increasing the RHA loading, higher bulk density, and surface area led to 
      decreasing the water absorption capacity of the RHA-blended cement concrete 
      during curing. Furthermore, 20 wt% replacement of cement by RHA in concrete 
      furnishes the 3-fold decrease of water absorption capacity compared to normal 
      concrete (without RHA). An empirical model was developed to predict the water 
      absorption capacity of the RHA-incorporated cement concrete. The model indicates 
      that RHA loading, silica content, and specific surface area are the key factors 
      influencing the water absorption capacity of the concrete. And the model appears 
      to be able to predict the water absorption capacity of concrete quite accurately 
      with > 95% confidence level.
CI  - (c) 2020. Springer-Verlag GmbH Germany, part of Springer Nature.
FAU - Balraj, Ambedkar
AU  - Balraj A
AD  - Carbon Capture Lab, Department of Chemical Engineering, Sri Sivasubramaniya Nadar 
      College of Engineering, Kalavakkam, Chennai, Tamil Nadu, 603 110, India. 
      ambedkarb@ssn.edu.in.
FAU - Jayaraman, Dhanalakshmi
AU  - Jayaraman D
AD  - Carbon Capture Lab, Department of Chemical Engineering, Sri Sivasubramaniya Nadar 
      College of Engineering, Kalavakkam, Chennai, Tamil Nadu, 603 110, India.
FAU - Krishnan, Jagannathan
AU  - Krishnan J
AD  - Carbon Capture Lab, Department of Chemical Engineering, Sri Sivasubramaniya Nadar 
      College of Engineering, Kalavakkam, Chennai, Tamil Nadu, 603 110, India.
FAU - Alex, Josephin
AU  - Alex J
AD  - Carbon Capture Lab, Department of Chemical Engineering, Sri Sivasubramaniya Nadar 
      College of Engineering, Kalavakkam, Chennai, Tamil Nadu, 603 110, India.
LA  - eng
PT  - Journal Article
DEP - 20201023
PL  - Germany
TA  - Environ Sci Pollut Res Int
JT  - Environmental science and pollution research international
JID - 9441769
RN  - 059QF0KO0R (Water)
SB  - IM
MH  - Construction Materials
MH  - *Oryza
MH  - Water
OTO - NOTNLM
OT  - Concrete
OT  - Empirical model
OT  - RHA loading
OT  - Rice husk ash
OT  - Surface area
OT  - Water absorption
EDAT- 2020/10/25 06:00
MHDA- 2021/11/26 06:00
CRDT- 2020/10/24 05:34
PHST- 2020/04/30 00:00 [received]
PHST- 2020/10/20 00:00 [accepted]
PHST- 2020/10/25 06:00 [pubmed]
PHST- 2021/11/26 06:00 [medline]
PHST- 2020/10/24 05:34 [entrez]
AID - 10.1007/s11356-020-11339-1 [pii]
AID - 10.1007/s11356-020-11339-1 [doi]
PST - ppublish
SO  - Environ Sci Pollut Res Int. 2021 Dec;28(45):63623-63628. doi: 
      10.1007/s11356-020-11339-1. Epub 2020 Oct 23.