This study explored the use of coir fibers extracted from coconut husks, an agro-waste material that constitutes sanitation and environmental pollution problems, as a reinforcing element in production metakaolin-based geopolymer composites with improved properties. A series sample formulations were produced varying fiber content (0.5, 1.0, 1.5, 2.0 percent weight metakaolin powder). The investi...

Dimension reduction for regression (DRR) deals with the problem of finding for high-dimensional data such low-dimensional representations, which preserve the ability to predict a target variable. We propose doing DRR using a neural network with a low-dimensional "bottleneck" layer. While the network is trained for regression, the bottleneck learns a low-dimensional representation for the data. ...

Berdasarkan standar SNI 1811-2007 helm di Indonesia terbuat dari bahan polimer ABS (Acrylonitrile Butadiene Styrene) yang harganya relatif mahal. Oleh karena itu, dibutuhkan alternatif pengganti dengan pemanfaatan limbah serat alam sebagai pembuatan komposit. Tujuan penelitian ini yaitu menganalisis pengaruh komposisi material, ketahanan impak, dan kekuatan bending material sabut kelapa resin p...

The chemical composition, anatomical characteristics, lignin distribution, and cell wall structure of oil palm frond (OPF), coconut (COIR), pineapple leaf (PALF), and banana stem (BS) fibers were analyzed. The chemical composition of fiber was analyzed according to TAPPI Methods. Light microscopy (LM) and transmission electron microscopy (TEM) were used to observe and determine the cell wall st...

The natural fibers such as coir, flax, oil palm, jute etc are widely used in civil construction and automobile industries based on their advantages like eco friendlyness well enhanced performances whereas the synthetic namely kevlar, carbon glass yield higher production costs. Hence this present work, a new fiber, Cissus Quadrangularis, which is made from Quadrangularis plant, has been introduc...

Abstract Peat is a soil that has high compressibility property beside having low bearing capacity. Due to these problems, the peat not suitable for construction purposes. Coconut waste an example of agricultural waste. In context environmental sustainability, use coir in geotechnical applications desirable. This research was conducted study stabilization by using Coir Fibre Ash (CFA) partially ...

Nuclear Magnetic Resonance (NMR) is used to study the early-age hydration as well autogenous shrinkage and drying of cement paste with addition coir fibers. The dosage water content fibers are evaluated. results show that added have a negligible influence on kinetics. However, internal curing effect saturated competition induced by dry visualized. As fiber increases, decrease due reinforcing ef...