The effect of vibropressing compaction process on the compressive strength based concrete paving blocks

Erno Widayanto; Agoes Soehardjono; Wisnumurti Wisnumurti; Achfas Zacoeb; Erno Widayanto; Agoes Soehardjono; Wisnumurti Wisnumurti; Achfas Zacoeb

doi:10.3934/matersci.2020.3.203

AIMS Materials Science

2020, Volume 7, Issue 3: 203-216. doi: 10.3934/matersci.2020.3.203

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The effect of vibropressing compaction process on the compressive strength based concrete paving blocks

1.
Department of Civil Engineering, Faculty of Engineering, University of Jember, Jember 68121, Indonesia
2.
Department of Civil, Faculty of Engineering, University of Brawijaya, Malang 68121, Indonesia

Received: 11 February 2020 Accepted: 13 May 2020 Published: 25 May 2020

Concrete paving blocks are a mixture of cement and aggregates, which using compressive energy blocks. Paving concrete is a dry concrete category, so it requires block energy in the compaction process. Block energy consists of manual blocks, block presses, and vibropressing blocks. They are pressing blocks to use hydraulics with a strong push of 75 kg/cm² with a 1, 2, and 3 s durations. Then the blocky vibropressing method, namely by making variations on the vibrating length between 4-8 seconds and a frequency of 25-50 Hz and pressing 75 kg/cm². All test specimens with the same volume ratio composition of 1 cement:4 sand:4 crushed stone ash 0-5 mm, and the water and cement ratio are 0.6. The results showed that the manual block and the pressing block did not have a sharp increase in compressive strength even though more blows in the manual bock and increased time in the bock pressing method. The vibropressing process shows a significant and linear growth in compressive strength with increase vibrations and frequencies. The conclusion is that the compressive strength of paving block concrete is very dependent on blocked in terms of the frequency and duration of vibrations.
- concrete paving block,
- manual block,
- pressing block,
- vibropressing,
- compaction technology
Citation: Erno Widayanto, Agoes Soehardjono, Wisnumurti Wisnumurti, Achfas Zacoeb. The effect of vibropressing compaction process on the compressive strength based concrete paving blocks[J]. AIMS Materials Science, 2020, 7(3): 203-216. doi: 10.3934/matersci.2020.3.203

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Abstract

Concrete paving blocks are a mixture of cement and aggregates, which using compressive energy blocks. Paving concrete is a dry concrete category, so it requires block energy in the compaction process. Block energy consists of manual blocks, block presses, and vibropressing blocks. They are pressing blocks to use hydraulics with a strong push of 75 kg/cm² with a 1, 2, and 3 s durations. Then the blocky vibropressing method, namely by making variations on the vibrating length between 4-8 seconds and a frequency of 25-50 Hz and pressing 75 kg/cm². All test specimens with the same volume ratio composition of 1 cement:4 sand:4 crushed stone ash 0-5 mm, and the water and cement ratio are 0.6. The results showed that the manual block and the pressing block did not have a sharp increase in compressive strength even though more blows in the manual bock and increased time in the bock pressing method. The vibropressing process shows a significant and linear growth in compressive strength with increase vibrations and frequencies. The conclusion is that the compressive strength of paving block concrete is very dependent on blocked in terms of the frequency and duration of vibrations.

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