Durability properties of multiple-blended binder concretes incorporating thermally activated alum sludge ash

2019 ◽  
Vol 200 ◽  
pp. 591-603 ◽  
Author(s):  
Haider M. Owaid ◽  
R. Hamid ◽  
M.R. Taha
Keyword(s):  
Thermally Activated ◽  
Durability Properties ◽  
Alum Sludge ◽  
Sludge Ash

scholarly journals Effect of different curing conditions on compressive strength and durability of kenaf fibre reinforced blended cementitious composites

2019 ◽  
Vol 277 ◽  
pp. 03012
Author(s):  
R. Ahmad ◽  
R. Hamid ◽  
S. A. Osman
Keyword(s):  
Compressive Strength ◽  
Accelerated Ageing ◽  
Cementitious Composites ◽  
Curing Conditions ◽  
Thermally Activated ◽  
Kenaf Fibre ◽  
Curing Period ◽  
Alum Sludge ◽  
Sludge Ash ◽  
Strength And Durability

This paper investigates the effect of normal curing (NC), air curing (AC), and burlap curing (BC) under different curing periods on the mechanical strength and durability of kenaf fibre reinforced blended cementitious composites (KFRBCC) with thermally activated alum sludge ash (AASA). The aim is to determine the most efficient condition and period for curing KFRBCC and to assess the effect of accelerated ageing on strength and durability of KFRBCC after wet/dry cycles. Meanwhile, the microstructure of these mixes is observed via scanning electron microscopy (SEM). The KFRBCC is designed to achieve strength beyond 50 MPa after 28 days (d) of curing by adding 2% treated kenaf fibre (KF) and by replacing Ordinary Portland Cement (OPC) with AASA. The findings suggest that compressive strength and durability of KFRBCC with 40% AASA cured under BC after age of 28 d are enhanced. The addition of treated KF with AASA have helped in limiting the reduction in the compressive strength and durability of the KFRBCC, particularly under prolonged curing period.

Influence of Thermally Activated Alum Sludge Ash on the near Surface Characteristics of Multiple-Blended Binders Concretes

2015 ◽  
Vol 754-755 ◽  
pp. 421-426 ◽  
Author(s):  
Haider Mohammed Owaid ◽  
Roszilah Hamid ◽  
Mohd Raihan Taha
Keyword(s):  
Inner Core ◽  
Surface Characteristics ◽  
Initial Surface ◽  
Surface Absorption ◽  
Palm Oil Fuel Ash ◽  
Near Surface ◽  
Cement Replacement ◽  
Thermally Activated ◽  
Alum Sludge ◽  
Sludge Ash

This research presents the results of an investigation on the influence of thermally activated alum sludge ash (AASA) as a partial cement replacement on the near-surface characteristics of binary and ternary blended binder (TBB) concretes incorporating silica fume (SF), ground granulated blast furnace slag (GGBS), and palm oil fuel ash (POFA). All of the mixtures were prepared with a water/binder ratio and total binder content of 0.30 and 493 kg/m3, respectively. Initial surface absorption (ISAT) and sorptivity tests were conducted at the age of 28 days. Results indicate decrease in the ISAT and sorptivity values of binary blended binders with 15% AASA cement replacement compared with the control and 20% AASA concretes. A higher replacement level of 20% AASA did not help improve inner core durability but improved surface durability characteristics. All TBB concretes performed better than the binary blends with AASA at the same replacement levels.

Effect of alum sludge ash on the high-temperature resistance of mortar

2022 ◽  
Vol 176 ◽  
pp. 105958
Author(s):  
Yue Liu ◽  
Yan Zhuge ◽  
Christopher W.K. Chow ◽  
Alexandra Keegan ◽  
Danda Li ◽  
...  
Keyword(s):  
High Temperature ◽  
Temperature Resistance ◽  
High Temperature Resistance ◽  
Alum Sludge ◽  
Sludge Ash

Strength - Ultrasonic Pulse Velocity Relationship of Thermally Activated Alum Sludge Multiple Blended High Performance Concretes

2013 ◽  
Vol 594-595 ◽  
pp. 521-526 ◽  
Author(s):  
Haider Mohammed Owaid ◽  
Roszilah Hamid ◽  
Mohd Raihan Taha
Keyword(s):  
Compressive Strength ◽  
High Performance ◽  
Ultrasonic Pulse Velocity ◽  
Ultrasonic Pulse ◽  
Pulse Velocity ◽  
Ternary Blends ◽  
Exponential Relationship ◽  
Palm Oil Fuel Ash ◽  
Thermally Activated ◽  
Alum Sludge

In this research the performance of ultrasonic pulse velocity in concrete is examined as a nondestructive experiment, in order to estimate compressive strength of thermally activated alum sludge multiple blended high performance concretes (HPC) that contain AAS, silica fume (SF), ground granulated blast furnace slag (GGBS) and palm oil fuel ash (POFA) are determined in both binary and ternary blends of cement. The water/binder ratio and total binder content are fixed at 0.30 and 493 kg/m3 for all types of mixes. The ultrasonic pulse velocity (UPV) of each concrete mix was measured using 100mm cubes after a curing period of ages of 3, 7, 28, 56 and 90 days. The results indicate a very positive exponential relationship between compressive strength and UPV for both binary and ternary blends of HPC mixtures, with coefficient correlation (R2) of 0.889.

scholarly journals Influence of alum sludge ash and ground granulated blast furnace slag on properties of cement mortar

2021 ◽  
pp. 100376
Author(s):  
Yee Leng Ng ◽  
M.A.A. Aldahdooh ◽  
Motasem Y.D. Alazaiza ◽  
Mohammed JK. Bashir ◽  
Chok Vui Soon ◽  
...  
Keyword(s):  
Blast Furnace ◽  
Blast Furnace Slag ◽  
Cement Mortar ◽  
Granulated Blast Furnace Slag ◽  
Alum Sludge ◽  
Sludge Ash ◽  
Furnace Slag

Cementitious composites containing alum sludge ash: An investigation of microstructural features by an advanced nanoindentation technology

2021 ◽  
Vol 299 ◽  
pp. 124286
Author(s):  
Yue Liu ◽  
Yan Zhuge ◽  
Christopher W.K. Chow ◽  
Alexandra Keegan ◽  
Jun Ma ◽  
...  
Keyword(s):  
Cementitious Composites ◽  
Alum Sludge ◽  
Sludge Ash
Sign in / Sign up

Export Citation Format

Share Document