scholarly journals STABILIZATION OF EXPANSIVE SOIL WITH MIXING CA(OH)2 (EXPANSIVE SOIL CASE STUDY: JATILUHUR HAMLET, GLAGAH AGUNG VILLAGE, PURWOHARJO DISTRICT, BANYUWANGI REGENCY)

2019 ◽  
Vol 3 (1) ◽  
pp. 17
Author(s):  
Celia Nindy Carisa ◽  
Mokhammad Farid Ma'ruf ◽  
Paksitya Purnama Putra
Keyword(s):  
Expansive Soils ◽  
Clay Fraction ◽  
Expansive Soil ◽  
Special Treatment ◽  
Chemical Stabilization ◽  
Curing Time ◽  
Volume Changes ◽  
Lime Content ◽  
The Face

Expansive soils can cause problems in construction due to changing volume changes. The area that is suspected to have an expansive soil type is Glagah Agung village, Purwoharjo District, Banyuwangi. Every season change, the construction of the building is always damaged, especially on the structure of the building. In the rainy season, the land will expand and cause the building to rise, while at the dry season the land will shrink and there is a decline in buildings. In the face of these problems, it is necessary to do special treatment to improve the nature of the expansive soil. One is chemical stabilization, adding chemicals to improve soil properties and reduce their development potential. In this study, the stabilizers used are Ca (OH) 2 lime with a percentage of 4%, 6%, 8%, 10%, 12% with curing time for one day. The results of soil become less plastic with an increase of lime content. The decrease of plasticity index is supported by grain test which is the decrease of clay fraction grain on soil mixed with lime according to the USCS method and AASHTO method. There was a decrease in the percent of original primary soil development which was initially 11.9% decreased to 2.181% 4% lime content, and 0% at 6% to 12%. Tanah ekspansif dapat menimbulkan masalah dalam konstruksi akibat perubahan volume yang berubahubah. Daerah yang diduga memiliki jenis tanah ekspansif adalah Desa Glagah agung Kecamatan Purwoharjo, Kabupaten Banyuwangi. Setiap pergantian musim, konstruksi bangunan selalu mengalami kerusakan terutama pada struktur dari bangunan. Pada musim penghujan tanah akan mengembang dan mengakibatkan bangunan terangkat, sedangkan pada saat kemarau tanah akan menyusut dan terjadi penurunan bangunan. Dalam menghadapi permasalahan yang terjadi maka perlu dilakukan treatment khusus untuk memperbaiki sifat tanah ekspansif. Salah satunya adalah stabilisasi kimiawi, dengan menambahkan bahan kimia untuk memperbaiki sifat tanah dan mereduksi potensi pengembangannya. pada peneliatian ini, stabilitator yang digunakan adalah kapur Ca(OH)2 dengan prosentase 4%,6%,8%,10%,12% dengan waktu peram (curing) selama 24 jam. Didapatkan hasil tanah menjadi tidak plastis seiring dengan bertambahnya kadar kapur. Penurunan indeks plastisitas didukung dengan pengujian gradasi butiran yaitu berkurangnya butiran fraksi lempung pada tanah yang dicampur dengan kapur menurut metode USCS dan metode AASHTO. Terjadi penurunan persen pengembangan primer tanah asli yang mulanya sebesar 11,9% berkurang menjadi 2,181% kadar kapur 4%, dan 0% pada kadar 6% hingga 12%.

scholarly journals STABILISASI TANAH EKSPANSIF MENGGUNAKAN KAPUR DAN SPENT CATALYST UNTUK TANAH DASAR PERKERASAN

2019 ◽  
Vol 19 (1) ◽  
pp. 21-30
Author(s):  
Arifudin Nur ◽  
Suryo Hapsoro Tri Utomo ◽  
M. Zudhy Irawan
Keyword(s):  
Soil Stabilization ◽  
Expansive Soils ◽  
Expansive Soil ◽  
Petroleum Processing ◽  
Spent Catalyst ◽  
Maximum Increase ◽  
Lime Content ◽  
Road Pavement ◽  
Pozzolanic Material ◽  
Spent Catalysts

Abstract Expansive soils have high swelling and shrinkage potentials, which may cause damage to road structures. Therefore, stabilization is required. One method of stabilization is to use lime and spent catalysts with the aim of increasing carrying capacity and reducing swelling. Spent catalyst is a petroleum processing waste and classified as pozzolanic material. The addition of lime and spent catalysts can increase the CBR value and reduce swelling of soils. The results of this study indicate that the maximum increase in soaked CBR and unsoaked CBR values occurred in soil mixtures with optimum lime content and 12% spent catalyst with 7 days of curing. While the soil mixture with optimum lime content and 12% spent catalyst, with 7 days of curing, is the best mixture that produces soaked CBR value of 49.67%, swelling of 0.15%, and plasticity index value of 11.97%, so the soil meets the requirements to be used as pavement subgrade. Keywords: expansive soil, stabilization, road structure, subgrade, road pavement  Abstrak Tanah ekspansif memiliki potensi pengembangan dan penyusutan yang tinggi, sehingga dapat menyebabkan kerusakan struktur jalan. Oleh sebab itu, perlu dilakukan stabilisasi. Salah satu metode stabilisasi adalah menggunakan kapur dan spent catalyst dengan tujuan meningkatkan kapasitas dukung dan menurunkan swelling. Spent catalyst merupakan limbah pengolahan minyak bumi dan termasuk bahan pozzolan. Penam-bahan kapur dan spent catalyst mampu meningkatkan nilai CBR dan mereduksi swelling. Hasil studi ini menunjukkan bahwa peningkatan maksimum nilai CBR soaked maupun CBR unsoaked terjadi pada campuran tanah dengan kadar kapur optimum dan 12% spent catalyst dengan peraman 7 hari. Sedangkan campuran tanah dengan kadar kapur optimum dan 12% spent catalyst, dengan peraman 7 hari, merupakan campuran terbaik yang menghasilkan nilai CBR soaked sebesar 49,67%, swelling sebesar 0,15%, dan nilai indeks plastisitas sebesar 11,97%, sehingga tanah memenuhi syarat untuk digunakan sebagai tanah dasar perkerasan jalan. Kata-kata kunci: tanah ekspansif, stabilisasi, struktur jalan, tanah dasar, perkerasan jalan

The Australian Approach to Residential Footing Design on Expansive Soils

2013 ◽  
Vol 438-439 ◽  
pp. 593-598
Author(s):  
Jie Li ◽  
An Nan Zhou
Keyword(s):  
Arid Regions ◽  
Current Practice ◽  
Expansive Soils ◽  
Residential Buildings ◽  
Expansive Soil ◽  
Site Classification ◽  
Residential House ◽  
Semi Arid ◽  
Soil Movements

Expansive soils in semi-arid regions are of great concern to design and geotechnical engineers. Damage to residential buildings resulting from expansive soil movements has been widely reported in Australia. This paper describes the current practice in Australia, which includes the site classification, laboratory tests and residential footing design. A case study of a residential house damaged by expansive soils is also presented.

Permeability of Expansive Soils Modified/Stabilized with lime (Review Paper)

2021 ◽  
Vol 14 (2) ◽  
pp. 129-140
Author(s):  
Muwafaq Awad ◽  
Ibrahim Al-Kiki ◽  
Amina Khalil
Keyword(s):  
Expansive Soils ◽  
Expansive Soil ◽  
Pozzolanic Reaction ◽  
Curing Temperature ◽  
Curing Time ◽  
Short Term ◽  
Coefficient Of Permeability ◽  
Review Study ◽  
Time Periods

The aim of this paper was to review the mechanism of the expansive soil-lime reactions: short term and long-term reactions in both lime modification and lime stabilization. The focus of the study was the effect of curing time for a certain centigrade 25C curing temperature in both lime modification / stabilization-expansive soils on the coefficient of permeability. Peer reviewed articles published between 2000- and 2019 were collected and relevant data were extracted. Results of this review study showed that the coefficient of permeability of expansive soils modified with lime increased during the first 7 days of curing time at curing temperature 25C and it remains constant or slightly decreased for longer curing time periods. However, for expansive soils stabilized with lime, it was found that the coefficient of permeability increased during the first 7-day curing time at curing temperature 25C, then decreased during the longer curing time periods (pozzolanic reaction). It is also noted that even though the coefficient of permeability decreased during pozzolanic reaction, it remains higher than that of the untreated soils

scholarly journals Valorisation of egg shell ash as a potential replacement for lime in stabilization of expansive soils

2020 ◽  
Vol 63 (3) ◽  
pp. 13-20
Author(s):  
Jijo James ◽  
Priya Jothi ◽  
P. Karthika ◽  
S. Kokila ◽  
V. Vidyasagar
Keyword(s):  
Soil Properties ◽  
Soil Stabilization ◽  
Expansive Soils ◽  
Expansive Soil ◽  
Unconfined Compression ◽  
Unconfined Compression Test ◽  
Wetting And Drying ◽  
Lime Content ◽  
Stabilized Soil ◽  
Egg Shell

The investigation focussed on the possibility of replacing lime in soil stabilization using Egg Shell Ash (ESA), a waste derived from poultry industry. An expansive soil was characterized for its properties in the lab. The minimum lime content required for modification of soil properties was determined from the Eades and Grim pH test. This lime content came out to be 3%. The lime content was replaced using ESA in the proportions of 33%, 50%, 67% and 100%. Unconfined compression test specimens of dimension 38 mm x 76 mm were cast for different combinations and were cured for periods of 3, 7 and 28 days. Samples were also subjected to 1, 3 and 5 cycles of wetting and drying to understand its durability. After the designated curing periods and cycles of wetting and drying, they were strained axially till failure. Atterberg limits tests were done to determine the plasticity of the stabilized soil. The strength results indicated that ESA cannot be used under normal conditions as a replacement for lime, however, ESA replacement resulted in good durability of the specimens under conditions of wetting and drying. It was concluded that ESA replacement of lime can be adopted in conditions of wetting and drying.

scholarly journals Effect of Polymeric Resins on Geotechnical Properties of Black Cotton Soil

2020 ◽  
Vol 8 (5) ◽  
pp. 1781-1785
Keyword(s):  
Expansive Soils ◽  
Expansive Soil ◽  
Geotechnical Properties ◽  
Black Cotton Soil ◽  
Soil Conditions ◽  
Chemical Stabilization ◽  
Stabilization Method ◽  
Mechanical Stabilization ◽  
Polymeric Resins ◽  
Moisture Barriers

Stabilization of black cotton soil is a challenging task for geotechnical engineers since such soil is highly vulnerable to expansive characteristics when the moisture content is increased. Due to its expansive nature, it is also called as swelling or expansive soils. Among the clay minerals, Montmorillonite is mainly responsible for such expansive characteristics. Bore log profile has a cluster of soil specimens including black cotton soil also which is unavoidable. Soil engineers have a serious concern about such expansive soil since it is treacherous for foundation of buildings. To overcome such deficiencies it becomes essential to stabilize the soil conditions. The commonly employed methods to decrease the expansive behaviour are: Chemical stabilization, Mechanical stabilization and installation of moisture barriers. In this paper, chemical stabilization method is adopted. Soil stabilizers, namely, sodium silicate, epoxy resin and polyvinyl alcohol are chosen and are mixed with black cotton soil in varying proportions of 5%, 10% and 15% to study the changes in geotechnical properties. From the results it is evident that polymer treated soils reduce plasticity characteristics and shows better results in geotechnical properties.

The Tests on the Lime-Treated Expansive Soils Compaction Characteristics

2013 ◽  
Vol 405-408 ◽  
pp. 548-553
Author(s):  
Xin Zhong Wang ◽  
Rui Liu ◽  
Shu Jun Peng
Keyword(s):  
Water Content ◽  
Expansive Soils ◽  
Expansive Soil ◽  
Dry Density ◽  
Maximum Dry Density ◽  
Compaction Characteristics ◽  
Lime Content ◽  
Compaction Energy ◽  
Wetting Time ◽  
Lower Height

The compaction characteristics of the lime-treated expansive soils from the planning airport in China's Ankang were studied through the heavy compaction tests. The results show that all these elements such as lime content, water content, soil height, wetting time have a certain effect on dry density. As the lime quality ratio increases, the optimum water content under heavy compacting standard of improved soils increases but the maximum dry density decreases. With the increase of lime content, the effect of water content on dry density decreases while the water content near to its optimum value. Soils with the lower height have higher dry density when compaction energy, lime content and water content unchanged. As the wetting time increases, the maximum dry density shows a decreasing tendency until after 48 h it remained stable. It indicates that with the same lime content the order of primary factors influence on dry density are water content, wetting time, soil height. Finally, the lime stabilizing principle to expansive soil is explained through by applying scanning electron microscope technique.

scholarly journals EXPANSIVE SOILS STABILIZATION WITH ADDITIONAL SAND (CASE STUDY : JATILUHUR HAMLET, GLGAH AGUNG VILLAGE, PURWOHARJO SUB-DISTRICT, BANYUWANGI DISTRICT)

2018 ◽  
Vol 2 (01) ◽  
pp. 43
Author(s):  
Muhammad Ari Ridwansyah ◽  
Mokhamad Farid Ma'ruf ◽  
Paksitya Purnama Putra
Keyword(s):  
Expansive Soils ◽  
Expansive Soil ◽  
The United States ◽  
Soil Development ◽  
Liquid Limit ◽  
Soil Permeability ◽  
Density Values ◽  
High Level ◽  
High Plastic

Expansive soil is one of the global problems in the field of construction. In the United States, the estimated cost of damage to buildings and infrastructure due to expansive soils reaches $ 15 million per year (Far & Flint, 2016). While in the hamlet Jatiluhur, Glagahagung village, District Purwoharjo, Banyuwangi district expansive soils much damage the walls and floors of residences. Damage caused by this type of soil has high shrunken properties. In order to reduce these properties stabilization needs to be done. Stabilization in this research uses sand as the stabilizer. The addition of sand aims to reduce the ratio of clay cohesion properties, increase density values, reduce the potential for soil development and reduce soil permeability. The sand content used for stabilization is 15%, 20%, 25%, 30% and 35%. From the test results obtained the original soil has a liquid limit of 90.86%, plastic limit of 36.97% and plasticity index of 53.89%. Under the USCS classification system, the original soil belongs to the category of high plastic clay soil. From several classifications of the expansive soil development potential, the original soil is included in the ground with a high level of development. While the result of mixed soil testing is found that the greater the level of sand can reduce the properties of plasticity, moisture content, and soil development. Tanah ekspansif di desa Glagahagung, Kecamatan Purwoharjo, Kabupaten Banyuwangi banyak merusak dinding dan lantai rumah warga. Kerusakan diakibatkan karena tanah jenis ini memiliki sifat kembang susut tinggi. Guna mengurangi sifat tersebut perlu dilakukan stabilisasi. Stabilisasi dalam penelitian ini menggunakan pasir sebagai stabilitator. Penambahan pasir bertujuan untuk mengurangi rasio sifat kohesi lempung, meningkatkan nilai kepadatan, mengurangi potensi pengembangan tanah dan menurunkan permeabilitas tanah. Kadar pasir yang digunakan untuk stabilisasi sebesar 15%, 20%, 25%, 30% dan 35%. Dari hasil pengujian didapat tanah asli memiliki batas cair sebesar 90,86%, batas plastis sebesar 36,97% dan indeks plastisitas sebesar 53,89%. Berdasarkan sistem klasifikasi USCS, tanah asli termasuk dalam kategori tanah lempung plastisitas tinggi. Dari beberapa klasifikasi mengenai potensi pengembangan tanah ekspansif, tanah asli termasuk ke dalam tanah dengan tingkat pengembangan tinggi. Sedangkan hasil dari pengujian tanah campuran didapatkan bahwa semakin besar kadar pasir dapat mengurangi sifat plastisitas, kadar air, dan pengembangan tanah.

scholarly journals Displacements of Object Founded on Expansive Soils—A Case Study of Light Construction

Geosciences ◽  
2020 ◽  
Vol 10 (4) ◽  
pp. 153
Author(s):  
Aleksandra Gorączko ◽  
Jacek Sztubecki ◽  
Adam Bujarkiewicz ◽  
Szymon Topoliński
Keyword(s):  
Environmental Changes ◽  
Expansive Soils ◽  
Seasonal Fluctuations ◽  
Volume Changes ◽  
Expansive Clays ◽  
Natural Moisture Content ◽  
Geotechnical Investigations ◽  
Main Factors ◽  
Spatial Displacements

The paper presents results of observations of a light structure damaged by irregular vertical and horizontal deformations on Neogene expansive clays, typical for area in Central Poland. The sensitivity to environmental changes of humidity in such subsoils can activate volume changes, which causes the destruction of many objects susceptible to deformation. Detailed geotechnical investigations, including seasonal fluctuations of natural moisture content, were carried out for over a year, describing the dynamism of conditions of clays in the foundation zone. Parallel geodetic measurements of vertical and horizontal displacements were carried out, using classical precision leveling and the coordinate method of the Leica TDRA 6000 laser station. The network of measurement points has been specially designed and implemented to follow the spatial displacements of the structure. The network points were placed at the bottom of pillars and on the flooring of the structure located in the upper part. In the paper, the results of the vertical and horizontal periodical measurement of displacements of an investigated construction over the year were discussed to identify the main factors influencing the mechanism of damage of the observed structure.

scholarly journals Correlation between Swelling Pressure and Free Swell of Greater Cairo City Expansive Soils – A Case Study

2019 ◽  
pp. 1-6
Author(s):  
Nasser A. A. Radwan ◽  
Khaled M. M. Bahloul
Keyword(s):  
Expansive Soils ◽  
Expansive Soil ◽  
Swelling Pressure ◽  
Plasticity Index ◽  
Greater Cairo ◽  
Multiple Variable ◽  
Free Swell ◽  
Multiple Variable Regression ◽  
The Relationship

The aim of this research is to investigate experimentally the relationship between free swell, plasticity index of expansive soil found in greater Cairo City Suburbs, Egypt with swelling pressure of mentioned soil. Predicting Swelling Pressure of any soil is a time consuming and expensive test in comparison to determining plasticity index and free swell which are simple, fast and economic tests. In present research six samples of expansive soil were collected from different locations of study area. The method uses single variable and multiple variable regression analysis using Microsoft excel software.

scholarly journals An Experimental Study on the Geotechnical, Mineralogical, and Swelling Behavior of KPK Expansive Soils

2021 ◽  
Vol 2021 ◽  
pp. 1-13
Author(s):  
Bakht Zamin ◽  
Hassan Nasir ◽  
Khalid Mehmood ◽  
Qaiser Iqbal ◽  
Asim Farooq ◽  
...  
Keyword(s):  
Expansive Soils ◽  
Clay Fraction ◽  
Expansive Soil ◽  
Vital Role ◽  
Maintenance Cost ◽  
High Plasticity ◽  
Swell Potential ◽  
Overall Stability ◽  
Swelling Characteristics ◽  
Arid And Semiarid

Expansive soils are found in numerous regions of the world explicitly in arid and semiarid zones. These soils expand when absorbed moisture and shrink when released water. Such soil is viewed as a characteristic risk for infrastructures due to the shrink and swell behavior. These soils become more problematic when lightly or moderately loaded structures are built on them. The swelling and shrinkage in these soils chiefly happen due to the presence of montmorillonite minerals. The mineralogical and swell behavior of foundation soils is playing a vital role in the overall stability of a structure. These parameters are often ignored in the geotechnical report writing stage specifically in small projects, due to which, the durability and service life of the facilities are reduced and the maintenance cost is increased. To mitigate the potential damages in structures constructed on expansive soil, it is necessary to assess the mineralogical and swelling characteristics of expansive soil. The current study aims to determine the geotechnical, mineralogical, and swell behavior of the local expansive soils. Based on the results, the Karak soil has the highest plasticity index (PI) of 37% with a clay fraction of 28%, while the D.I. Khan soil has the least PI of 23% with a clay fraction of 17%. Similarly, Karak’s soil contained a higher percentage of montmorillonite (Rp = 8.9%). The maximum values of swell pressure, swell potential, and 1D deformation are 280 kPa, 12.5%, and 1.92 mm for the Karak soil, 6.45% 150 kPa, and 1.38 mm for D.I. Khan soil, and 10.5%, 245 kPa, and 1.64 mm for Kohat soil, respectively. This concludes that Karak’s soil has high plasticity and swell characteristics than Kohat and D.I. Khan soil. The swell characteristic of expansive soils increases with the increase in the percentage of the fine specifically the clay fraction. Furthermore, the Karak soil is more critical than Kohat and D.I. khan soil for lightly loaded structures.

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