Factors influencing resident’s decision to reside in gated and guarded community (2025)

Effect of mixing proportion on the properties of seaweed modified sustainable concrete

AIP Conference Proceedings, 2017

Although the application of organic polymer has already been reported in the development of polymer modification process the use of carbohydrate polymer hasn't been reported till date. The effect of mixing ratio of seaweed modified mortar on the properties of sustainable concrete was investigated. A number of mixing ratios of seaweed (gel) with cement, sand and water (such as 0.1; 0.6; 1.1; 6) was studied in this work. In addition, a range of mixing ratios of seaweed (powder) with cement, sand and water (such as 0.1; 0.3; 0.6; 1.1; 2.1, 5.1) was examined. The performance of the seaweed modified sustainable concrete was evaluated by compressive and splitting strength. Results revealed that seaweed modified concrete with mixing ratio (0.6) was optimum. This ratio produced significant compressive and splitting strength of 30 MPa and 5 MPa for 28 days, respectively.

Application of natural seaweed modified mortar for sustainable concrete production

IOP conference series, 2018

The effect of seaweed such as Eucheuma Cottonii (gel) and Gracilaria Sp. modified mortar on the properties of sustainable concrete was investigated. Pre-experiment and mainexperiment was conducted to carry out this study. Pre-experiment was conducted to study the compressive strength of the sustainable concrete. The main-experiment studied the compressive and splitting strength. Results showed that seaweed modified mortar yielded satisfactory compressive and splitting strength of 30 MPa and 5 MPa at 28 days.

The Advantage of Natural Polymer Modified Mortar with Seaweed: Green Construction Material Innovation for Sustainable Concrete

Procedia Engineering, 2014

One important innovation of green construction material is natural polymer modified mortar. In this research, polymer modified mortar used natural polymer from seaweeds, they are Eucheuma Cottonii (gel) and Gracilaria Sp. The research conducted in two parts, pre-experiment and main-experiment. Pre-experiment aimed to investigate compressive strength of natural polymer modified mortar with seaweed gel (Eucheuma Cottonii) and seaweed powder (Gracilaria Sp.). The pre-experiment followed by main-experiment which investigated compressive strength and splitting tensile strength. The research has shown that natural polymer modified mortar with seaweed powder (Gracilaria Sp.) performed great compressive strength and splitting tensile with optimum mix composition of KM-0.5.

ScienceDirect The advantage of natural polymer modified mortar with seaweed: green construction material innovation for sustainable concrete

One important innovation of green construction material is natural polymer modified mortar. In this research, polymer modified mortar used natural polymer from seaweeds, they are Eucheuma Cottonii (gel) and Gracilaria Sp. The research conducted in two parts, pre-experiment and main-experiment. Pre-experiment aimed to investigate compressive strength of natural polymer modified mortar with seaweed gel (Eucheuma Cottonii) and seaweed powder (Gracilaria Sp.). The pre-experiment followed by main-experiment which investigated compressive strength and splitting tensile strength. The research has shown that natural polymer modified mortar with seaweed powder (Gracilaria Sp.) performed great compressive strength and splitting tensile with optimum mix composition of KM-0.5.

Effect Of Water-Cement Ratio On Performance Of Seaweed-Modified Mortars

The European Proceedings of Social and Behavioural Sciences, 2019

This is an Open Access article distributed under the terms of the Creative Commons Attribution-Noncommercial 4.0 Unported License, permitting all non-commercial use, distribution, and reproduction in any medium, provided the original work is properly cited.

International Journal of Civil Engineering, 2017

Increase in the developmental activities world over the demand for construction materials is increasing exponentially. India is also aiming at a high developmental rate compared to other nations in Asia there is a heavy demand for building materials in the domestic market day by day. Now a days the main focus is on sustainable development. Green construction materials take an important role in sustainable development. Seaweed is pure natural material that offers numerous advantages such as, Excellent heat insulation and heat capacity characteristics as well full Bio-degradability and strong carbon-dioxide fixation. Studies have been done on seaweed since 20 years in different areas such as Food, Cosmetic, construction industry (Concrete, Unfired Clay bricks, Roofs, Novel Biofiller)…etc Studies done on concrete were mostly focusing on increasing the strength of concrete but no researcher has focused on how seaweed can increase the strength of the concrete and use of seaweed as an internal curing agent. In this paper, we just want to review the literature and the importance of seaweed and its uses in concrete, a different test like Compressive, Split Tensile, Flexure and Chemical composition is carried out.

Potential Application of Biocomposite from Seaweed as a Green Construction Material

2016

This research aims to identify the compounds of the materials of the seaweed by finding the most similar properties with cement (cementitious property). Also, this research aims to determine the strength of the strength of mortar, based on range of percentage replacement levels in the mortar (0.1%, 0.5%, 1.0%, and 2.5%) when mixed with seaweed, which Gracilaria Changii species was used. In achieving a high strength concrete, a large amount of cement is used whilst a small number of seaweed added in the concrete can enhance the concrete to achieve a higher strength.

Effect on Properties of Concrete containing different Percentage of Sea Sand and Mineral Admixture

International Journal for Research in Applied Science and Engineering Technology, 2019

In the construction work sand is mainly obtain from river bed. Presently river sand cannot meet as per demand in construction. Sea sand can be use as alternative source and it will meet demand of fine aggregate. After research it is found that compressive strength increases by 10% with the use of sea sand as compare to normal sand. But sea sand contains of chlorine salt and it will affect on strength and durability of concrete. To reduce effect of sea sand desalinisation method is used in this research. Also effect of salt content can be reduce with the use of mineral admixture (i.e. Metakaolin and GGBS) by replacing cement in 10%,20%,30%. Strength and durability parameters is checked by performing different laboratory test like compressive strength, flexural strength, tensile strength, RCPT, acid attack, sulphate attack.

The study of long-term durability and bio-colonization of concrete in marine environment

Environmental and Sustainability Indicators, 2021

The purpose of this paper is to study the long-term durability and bio-colonization of concrete in marine environment. In this work, concrete formulations were developed and optimised by varying the type of cement (CEMII and CEMV) and introducing shellfish by-products (Oyster Shells) into their composition (by substituting 20% by weight of 4/10 aggregates). Four concrete formulations were thus studied. The durability of these materials upon bio-colonization were tested after 90 days, 180 and 360 days of immersion in natural seawater. The monitoring of the photosynthetic activity of biofilms and the biomass on the materials surface showed a better acclimatisation of the microphytobenthos in CEMII 20% Shells concrete than in other concretes despite a lower colonization on this concrete. It was also noticed that the chlorophyll biomass was the highest in concrete CEMV 20% Shells after 360 days. During immersion, the mechanical strengths of CEMII 0% Shells, CEMII 20% Shells and CEMV 20% Shells increased. At long term of immersion, the chloride ions diffusion was more reduced, in natural seawater, for CEMII 0% Shells, CEMII 20% Shells and CEMV 20% Shells concretes than for concrete CEMV 0% Shells. these results lead to the assumption that the accumulation of biofilm plays a role as protective barrier against the action of chloride ions. Finally, it appears that the concrete CEMII 20% Shells is the most suitable concrete mix design for marine infrastructure amongst the tested designs.

Aquatic Weed for Concrete Sustainability

Sustainability

Ordinary Portland cement (OPC) is the primary binder of concrete, accounting for approximately 5% to 7% of greenhouse gas (GHG) and carbon dioxide (CO2) emissions with an annual production rate of more than 4 billion tons. It is critical to reduce the carbon footprint of concrete without sacrificing its performance. To this end, this study focuses on the use of water hyacinth ash (WHA) as a pozzolanic binder in the production of concrete as a partial replacement for cement. Four mixes are designed to achieve C-25-grade concrete with varying proportions of cement replacement with WHA of 0%, 5%, 10%, and 15% of the cement weight. Extensive experiments are performed to examine the workability, strength, durability, and microstructure of concrete specimens. The test results confirm that incorporating WHA in concrete improved its workability, strength, and durability. The optimal results are obtained at the maximum OPC replacement level, with 10% WHA. The use of WHA as a partial replacem...