CD Skripsi

Pengaruh Gradasi Dan Bentuk Butiran Pasir Terhadap Kuat Gesernya

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Gradation and grain shape of sand are some of the factors that influence
the technical properties of sand, namely shear strength. This needs to be
considered, so that the effect can be maximized for construction related to sand.
The purpose of this study is to find out how to analyze the shape of the sand
grains and analyze the behavior of the angle of friction (ϕ) due to the influence of
the grading and shape of the grains. The test is carried out by dividing the
gradation, which consists of three variations with a relative density of 70%,
between pass by sieve No. 4 and retained in No.200. Gradation 1 is dominated by
medium granules as much as 100%, gradation 2 is dominated by coarse granules
as much as 60%, and gradation 3 is dominated by fine granules as much as 60%.
The shape of the sand grains is divided into two forms, namely the group of
angular and rounded grains, which are distinguished based on the morphological
parameters of the granules namely roundness (R), sphericity (S) and regularity
(ρ). The morphological parameters of the granules are analyzed using imageJ.
The results showed that the analysis of grains shape of sand using imageJ,
obtained levels of grain shape from the two sands, namely sub-angular and subrounded.
The effect of gradation on angle of friction (ϕ) is gradation dominated
by coarse grains of 60%, namely gradation variation 2, and which has a long
grain distribution, namely gradation variation 3 has a higher angle of friction (ϕ)
compared to gradation variation 1. Comparison of the angle of friction (ϕ)
between the grain shape of sand, that is sand with a sub-angular shape has a
higher the angle of friction (ϕ) compared to sand with a sub-rounded shape.
Keywords: Sand, gradation, particle shape, imageJ, roundness (R), sphericity (S),
regularity (ρ), angle of friction (ϕ).

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Ketersediaan

Informasi Detail

Judul Seri

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No. Panggil

07 01. 120 (0073)

Penerbit

Pekanbaru : Universitas Riau – Fakultas Sipil – Teknik Sipil., 2020

Deskripsi Fisik

xii, 29 hlm.; ill.: 29 cm

Bahasa

Indonesia

ISBN/ISSN

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Klasifikasi

07 01. 120 (0073)

Tipe Isi

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Tipe Media

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Tipe Pembawa

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Edisi

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Subjek

TEKNIK SIPIL

Info Detail Spesifik

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Pernyataan Tanggungjawab

Daus

Versi lain/terkait

Lampiran Berkas

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