scholarly journals Toner Used In The Development of Foamed Concrete For Structural Use

2018 ◽  
Vol 9 (1) ◽  
pp. 27-33 ◽  
Author(s):  
P. A. Shawnim ◽  
F. Mohammad
Keyword(s):  
Compressive Strength ◽  
Structural Material ◽  
Ordinary Portland Cement ◽  
Published Data ◽  
Structural Elements ◽  
Water Penetration ◽  
Foaming Agent ◽  
Foamed Concrete ◽  
New Material ◽  
The Right

This paper investigates the effect of toner as a new material on enhancing compressive strength and permeability of foamed concrete (FC). The aim is to develop the FC through testing the reaction of toner with the cement of the FC, to produce a hydrophobic lightweight FC to use for structural elements. Foamed concrete is generally made of ordinary Portland cement (OPC), sand, foaming agent, and water with a well spread pore structure. The experiment was carried out on 100 mm cubes. Results for toner inclusion of all the mixes, when added in the right quantities, showed high improvement for water penetration and compressive strength in comparison to the published data on FC for the use as structural material, which is a step forward in the advancement of FC to meet the aim of this research.

scholarly journals Research on Properties of Foamed Concrete Reinforced with Small Sized Glazed Hollow Beads

2016 ◽  
Vol 2016 ◽  
pp. 1-8 ◽  
Author(s):  
Chi Hu ◽  
Hui Li ◽  
Zhongwei Liu ◽  
Qingyuan Wang
Keyword(s):  
Thermal Conductivity ◽  
Compressive Strength ◽  
Vegetable Protein ◽  
Ordinary Portland Cement ◽  
Raw Materials ◽  
Test Sample ◽  
Foaming Agent ◽  
Air Voids ◽  
Foamed Concrete ◽  
Air Void

Foamed concrete (400 kg/m3) was prepared through a physical foaming method using ordinary Portland cement (42.5R), vegetable protein foaming agent, fly ash, and glazed hollow beads (GHB, K46) as raw materials. The performance of cement paste as well as the structure and distribution of air voids was characterized by rheometry, SEM, and XRD analyses with imaging software. The effects of GHBs on the compressive strength and thermal conductivity of the foamed concrete sample were also explored. Results show that the proportion of 50–400 μm air voids, average air-void diameter, 28 d compressive strength, and thermal conductivity of the test sample mixed with 2.4 wt% GHBs are 94.44%, 182.10 μm, 2.39 MPa, and 0.0936 w/(m·k), respectively. Excessive amount of GHBs (>2.4 wt%) increases the amount of air voids with diameter smaller than 50 μm in the hardened foamed concrete as well as the degree of open porosity. Moreover, the proportion of 50–400 μm air voids, average air-void diameter, 28 d compressive strength, and thermal conductivity of the sample mixed with 4.0 wt% GHBs are 88.54%, 140.50 μm, 2.05 MPa, and 0.0907 w/(m·k), respectively.

scholarly journals Blended binder system with Incinerated Paper Ash (IPA) for Solidification/Stabilization (S/S)

2018 ◽  
Vol 7 (4.33) ◽  
pp. 491
Author(s):  
Mazni Mat Zin ◽  
Azyan Zafyrah Mohd Zahid ◽  
Noorashiekin Khalid ◽  
Nadia Zalikha Saifullizam ◽  
Wan Syarizawani Wan Chik ◽  
...  
Keyword(s):  
Compressive Strength ◽  
Unconfined Compressive Strength ◽  
Ordinary Portland Cement ◽  
Binder System ◽  
Sludge Treatment ◽  
Waste Sludge ◽  
New Material ◽  
The Impact ◽  
Leaching Procedure ◽  
Main Material

This research explored the potential to use IPA as a binder for the treatment of industrial waste sludge. Within the study, Incinerated Paper Ash (IPA) was used together Ordinary Portland Cement (OPC), a main material employed in solidification/stabilization (S/S) methodology to treated industrial ceramic sludge. The issues created by OPC in sustain the surroundings and cost force the new material must replace OPC as binder within the treatment methodology. The impact of the various IPA compositions within the system has been examined. The Unconfined Compressive Strength (UCS) and Toxicity Characteristic Leaching Procedure (TCLP) were used to assess the viability of IPA in sludge treatment once 28 days. The great result of compressive strength and decrease in heavy metals shows the potential of IPA in OPC replacement.   

Influence of Foaming Agent Type on The Behavior of Foamed Concrete

2021 ◽  
Vol 39 (1B) ◽  
pp. 80-88
Author(s):  
Ruqaya F. Hamada ◽  
Awham M. Hameed
Keyword(s):  
Compressive Strength ◽  
Cement Mortar ◽  
The Other ◽  
Dead Load ◽  
Standard Samples ◽  
High Quality ◽  
Foaming Agent ◽  
Foaming Agents ◽  
Foamed Concrete ◽  
Lower Bulk Density

In this work the desired aim is to study the effect of two various sorts of a foaming agents on the properties of foamed concrete to obtain high quality with a target density is nearly 1600 kg/m3. The standard samples were designed by employing two types of foam agent (FA), the first one is commercially named (EABSSOC foam agent, FA) while the second is the foam of detergent liquid (D) which known (Fairy). The results showed that the FA sample records the lower bulk density compared to the other types. The perfect mix which involved 1wt.% of (D) had higher values of the compressive strength 20.25MPa, 16.32MPa of the curing in water and air respectively and flexural strength (F.S) values were 6.89MPa,4.47MPa of the cured samples in (air, water) for various durations (7,14 and 28) days compared to the samples that contained 1and 0.8wt. % of FA. The obtained compressive strengths were 5.1MPa, 4.3MPa while the flexural strengths were 2.74MPa, 2.9MPa for the samples contained 1wt. %foam agent (FA) after the curing into water and air at the same duration.  It is obvious that the addition of foam to the cement mortar paste imparts great characteristics as lightweight with flowability. These properties and others make it suitable for some applications, for example, a decrease of the dead load from the structure, thermal and acoustic insulating and use it in non-structural sections such as a wall.

Study on High-Efficiency Complexed Foaming Agent for Lightweight Foamed Concrete

2011 ◽  
Vol 250-253 ◽  
pp. 569-573 ◽  
Author(s):  
Xian Ming Liu ◽  
Li Ya Wang ◽  
Sen Lan Li ◽  
Jian Ping Wang
Keyword(s):  
Thermal Conductivity ◽  
Compressive Strength ◽  
High Efficiency ◽  
Light Weight ◽  
Insulation Layer ◽  
Foam Expansion ◽  
Foaming Agent ◽  
Stable Foam ◽  
Foamed Concrete ◽  
Novel Complex

The introduction of foam into concrete, made the concrete have a small internal, closed independent uniform bubbles, which can form light weight, good insulation properties of foamed concrete, mainly used for roofing, non-load-bearing walls and thermal insulation layer pipeline. The purpose of this study is to obtain basic data on the properties of the development of lightweight foamed concrete containing a novel and high-efficiency foaming agent for various applications. The results show that this novel complex foaming agent have high foam expansion and stable foam. Lightweight foamed concrete based on LC foaming agent exhibits high compressive strength, low thermal conductivity and low water absorption after 28-day curing. Furthermore, it can be found that micropores is homogenously distributed into the LC foamed concrete with density of 400kg/m3.

Preparation and Performance Testing of Foamed Concrete

2013 ◽  
Vol 743-744 ◽  
pp. 166-170
Author(s):  
Ting Song Yang ◽  
Ling Chao Lu ◽  
Shou De Wang ◽  
Chen Chen Gong
Keyword(s):  
Compressive Strength ◽  
Mixing Time ◽  
Performance Testing ◽  
Dry Density ◽  
Preparation Technology ◽  
Foaming Agent ◽  
Cement Ratio ◽  
Water Cement Ratio ◽  
Foamed Concrete ◽  
And Performance

The key influences of foamed concrete and the optimum preparation technology were studied. The performance of foamed concrete was analyzed by the compressive strength testing, SEM. Results show that the flowability of cement paste is good when water-cement ratio is 0.4. The amount of foam added in sulphoaluminate cement is not able to exceed 3.5L/kg. However, the dilution multiple of foaming agent is near concentration and the mixing time depends on the foam quantity. When the water-cement ratio is 0.4, the foam quantity is 3 L/kg and the foaming agent is diluted 30 times. When the mixing time is 60s, the dry density is around 380kg/m3 and the 7d compressive strength reaches to 0.9MPa.

Performance of Lightweight Foamed Concrete with Replacement of Concrete Sludge Aggregate as Coarse Aggregate

2013 ◽  
Vol 689 ◽  
pp. 265-268 ◽  
Author(s):  
Mohamad Ibrahim Norlia ◽  
Roshazita Che Amat ◽  
Nur Liza Rahim ◽  
Shamshinar Sallehuddin
Keyword(s):  
Compressive Strength ◽  
Construction Industry ◽  
Coarse Aggregate ◽  
Lightweight Concrete ◽  
Construction Material ◽  
Partial Substitution ◽  
Structural Elements ◽  
Mixing Processes ◽  
Optimum Proportion ◽  
Foamed Concrete

The use of waste materials in construction industry is very essential in order to reduce the depletion of natural sources. Thus, this study is focused to determine the performance of lightweight foamed concrete made with concrete sludge aggregate (CSA) and to determine the optimum proportion of CSA that can gives optimum compressive strength. Strength is one of the most important properties of concrete since the first consideration in structural design is that the structural elements must be capable of carrying necessary loads. CSA has been use as partial substitution to normal coarse aggregate to manufacture structural lightweight foamed concrete. Two different sets of CSA proportion have been prepared with foamed injected through mixing processes. 25% and 50% of CSA for production of lightweight concrete were designed according to proper mix design. It is found that maximum percentage of CSA that contribute to the highest compressive strength of 25MPa is 50% of CSA replacement. Its density is 1837 kg/m3 with water adsorption of 16.35%. The usage of concrete sludge aggregate as construction material can be further promoted in order to solve major environmental issues.

scholarly journals Characteristics of Lightweight Concrete Based on a Synthetic Polymer Foaming Agent

Materials ◽  
2020 ◽  
Vol 13 (21) ◽  
pp. 4979 ◽  
Author(s):  
Marta Kadela ◽  
Alfred Kukiełka ◽  
Marcin Małek
Keyword(s):  
Compressive Strength ◽  
Lightweight Concrete ◽  
Synthetic Polymer ◽  
Dry Density ◽  
Foaming Agent ◽  
Polymer Foaming ◽  
Foamed Concrete ◽  
The Difference ◽  
Creep Deformations

The components of foamed concrete have a significant effect on its properties. Protein-based foamed concrete is used much more often. This study aims to assess the properties of foamed concrete with a density of around 500, 700, 800 and 1000 kg/m3 formed by using a synthetic polymer-based foaming agent. The distribution of pores, wet and dry density and compressive strengths were evaluated. In addition, the creep deformations of foamed concrete with different densities were measured. The difference in density of up to 170 kg/m3 for the highest densities was obtained. Foamed concrete with higher densities (700 and 800 kg/m3) showed similar characteristics of pores, which were different from those of samples with a density of 500 kg/m3. Compressive strength equal to 5.9 ± 0.2, 5.1 ± 0.2, 3.8 ± 0.3 and 1.4 ± 0.2 MPa was obtained for foamed concrete with a density of 500, 700, 800 and 1000 kg/m3, respectively. The obtained compressive strengths were higher than those found in the literature for the foamed concrete with the same densities. With increasing density, smaller creep deformations were obtained. Creep deformations were 509, 495 and 455 με for samples with densities of around 500, 700 and 1000 kg/m3 respectively. Deformation under long-term loading took place up to 90 days, regardless of the density of the foamed concrete.

scholarly journals Experimental Study of Ultralight (<300 kg/m3) Foamed Concrete

2014 ◽  
Vol 2014 ◽  
pp. 1-7 ◽  
Author(s):  
Xianjun Tan ◽  
Weizhong Chen ◽  
Yingge Hao ◽  
Xu Wang
Keyword(s):  
Experimental Study ◽  
Compressive Strength ◽  
Fly Ash ◽  
Energy Conservation ◽  
Environmental Protection ◽  
Building Material ◽  
Foaming Agent ◽  
New Energy ◽  
Foamed Concrete ◽  
Optimal Mixing

A type of ultralight (<300 kg/m3) foamed concrete (FC), which can be used as a new energy-conservation and environmental-protection building material and is particularly suitable for the thermal-insulation engineering of building external walls, was produced. The influences of different mixing amounts of fly ash, fly ash activator, WC (WC) ratio, and foaming agent (FA) on the compressive strength of FC were reported. The experimental study indicated that (1) the addition of fly ash reduced the strength of the FC and that the appropriate mixing amount of fly ash in this ultralight FC system should not exceed 45%; (2) with the increasing of fly ash activator, the strength of the FC sample is notably enhanced and the appropriate mixing amount of fly ash activator is 2.5%; (3) the optimized proportion of WC ratio is 0.45, and the FC that was produced according to this proportion has relatively high compressive strength; (4) by increasing the mixing amount of FA, the compressive strength of the FC notably decreases, and the optimal mixing amount of FA in this experiment is 3.5%.

scholarly journals Analytical Study of Physical & Mechanical Properties of Foamed Concrete Using ETABS

2018 ◽  
Vol 7 (3.10) ◽  
pp. 66
Author(s):  
T Subramani ◽  
R Amul
Keyword(s):  
Mechanical Properties ◽  
Compressive Strength ◽  
Analytical Study ◽  
Lightweight Concrete ◽  
Foam Concrete ◽  
Foaming Agent ◽  
Air Voids ◽  
Foamed Concrete ◽  
Foam Generator ◽  
Production Company

Foam concrete is a form of aerated lightweight concrete. Foamed concrete has emerged as most industrial fabric in Production Company. Foam concrete is produced while pre-fashioned foam is brought to slurry, the characteristic of froth is to create an air voids in cement–primarily based absolutely slurry. Foam is generated one by one via using foam generator; the foaming agent is diluted with water and aerated to create the froth. The cement paste or slurry set throughout the foam bubbles and whilst the froth being to degenerate, the paste has enough power to keep its form around the air voids. Consequently, this study investigates bodily and mechanical residences of foamed concrete. Ultimately comparative analyses had been finished to decide the relationships the various numerous mechanical homes parameters of the foamed concrete, especially the compressive strength, flexural electricity, splitting tensile electricity. The specimen analysed by means of the usage of the use of e- tab software program.  

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