The impact of changes in the geological conditions of road bedrock layers while road was in use

Result code in IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F61989100%3A27120%2F19%3A10242488" target="_blank" >RIV/61989100:27120/19:10242488 - isvavai.cz</a>

Result on the web

<a href="https://doi.org/10.2478/otmcj-2019-0008" target="_blank" >https://doi.org/10.2478/otmcj-2019-0008</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.2478/otmcj-2019-0008" target="_blank" >10.2478/otmcj-2019-0008</a>

Result language

angličtina

Original language name

The impact of changes in the geological conditions of road bedrock layers while road was in use

Original language description

This article examines the effective road reconstruction technologies applied during construction processes to ensure a required final quality of construction work. The construction quality and especially the overall levelness of roads is influenced by several factors. These factors include high-quality implementation of road structural layers, including active zones, which can be adversely affected by undisciplined application of technology, insufficient engineering and poor geological surveys. Suitable and effective reconstruction technology n provides the required quality of construction work yet does not significantly extend construction time. The authors propose stabilization using cement or lime during reconstruction. This stabilization method is used if the structure of the bedrock layers is finely granular. The stabilization process consists of excavating the unacceptable bedrock layer and mixing it with additives and water. New additives for bitumen and bentonite bedrock have recently been developed. Their application achieves strength characteristics of the road base layers comparable to conventional additives. A principally different bedrock stabilization method consists of completely replacing it with a gravel layer, which is used when individual base layers are diverse and stabilization using additives would not guarantee the required results, i.e. improved strength characteristics. In some cases, the existing base layers are not suitable for use as road base layers because of their characteristics, such as volumetric instability. For this reason, they must be replaced with more suitable materials. This topic is documented using a practical example.

Czech name

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Czech description

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Type

J_imp - Article in a specialist periodical, which is included in the Web of Science database

CEP classification

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OECD FORD branch

20101 - Civil engineering

Project

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Continuities

I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Publication year

2019

Confidentiality

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Name of the periodical

Organization, Technology and Management in Construction

ISSN

1847-5450

e-ISSN

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Volume of the periodical

19

Issue of the periodical within the volume

11

Country of publishing house

PL - POLAND

Number of pages

13

Pages from-to

2009-2021

UT code for WoS article

000495893000001

EID of the result in the Scopus database

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