Improvement of Problematic Soils with Biopolymer—An Environmentally Friendly Soil Stabilizer

环境友好型 稳定器(航空) 材料科学 土壤稳定 生物高聚物 复合材料 土壤水分 环境科学 工程类 聚合物 生态学 机械工程 生物 土壤科学
作者
Nima Latifi,Suksun Horpibulsuk,Christopher L. Meehan,Muhd Zaimi Abd Majid,Mahmood Md. Tahir,Edy Tonnizam Mohamad
出处
期刊:Journal of Materials in Civil Engineering [American Society of Civil Engineers]
卷期号:29 (2) 被引量:315
标识
DOI:10.1061/(asce)mt.1943-5533.0001706
摘要

Problematic soils with high compressibility and low shear strength are often treated with traditional chemical stabilizing additives such as cement and lime to improve their engineering properties. These additives are generally recognized as having less than ideal environmental impacts—in particular, the high quantity of greenhouse gases that are generally created during their production. With an increasing focus on the use of more environmentally friendly and sustainable materials in the built and natural environments, alternative eco-friendly additives to traditional chemical stabilizers have the potential to significantly change the field of soil improvement worldwide. The current study illustrates the viability of xanthan gum as an environmentally friendly stabilizer that can improve the engineering properties of both low- and high-swelling clays. Experimental mechanical tests were performed on both untreated and xanthan gum–stabilized montmorillonite and kaolinite clays at various curing times, including unconfined compression strength (UCS) tests, direct shear tests, and one-dimensional (1D) consolidation tests. Various microscopic techniques were also performed to characterize the microstructure of the stabilized soil matrix, including field emission scanning electron microscopy (FESEM) tests, Brunauer, Emmett, and Teller (N2-BET) surface area analysis tests, and particle size analysis (PSA) tests using a laser diffraction approach. From the results of the strength and compressibility testing, 1 and 1.5% xanthan gum contents were found to be optimum levels of additive use for the montmorillonite and kaolinite clays, respectively. The microstructural analysis tests performed indicated the formation of new cementitious products that result from chemical reactions between the xanthan gum and soil particles at the microlevel, which improved the soil structure by welding soil particles together and filling the pore space in the soil matrix. Significant engineering property improvement was observed during the first 28 days of curing; this improvement corresponded to significant changes in the soil's microstructure that occurred over the same period of time.
最长约 10秒,即可获得该文献文件

科研通智能强力驱动
Strongly Powered by AbleSci AI
更新
PDF的下载单位、IP信息已删除 (2025-6-4)

科研通是完全免费的文献互助平台,具备全网最快的应助速度,最高的求助完成率。 对每一个文献求助,科研通都将尽心尽力,给求助人一个满意的交代。
实时播报
刚刚
源轩发布了新的文献求助10
1秒前
1秒前
机智的紫丝完成签到,获得积分10
2秒前
大气怜烟发布了新的文献求助10
3秒前
catherine发布了新的文献求助10
4秒前
健身哥发布了新的文献求助10
4秒前
zzz发布了新的文献求助30
5秒前
长江长完成签到,获得积分10
5秒前
阿卓卓宇宙最可爱完成签到,获得积分20
6秒前
英姑应助qsxy采纳,获得10
8秒前
蓝多多应助有为采纳,获得20
9秒前
9秒前
10秒前
10秒前
10秒前
11秒前
echo完成签到 ,获得积分10
12秒前
MrTStar发布了新的文献求助30
13秒前
13秒前
生命科学的第一推动力完成签到 ,获得积分10
14秒前
15秒前
17秒前
humorlife完成签到,获得积分10
17秒前
loulan完成签到,获得积分10
17秒前
zycdx3906发布了新的文献求助10
18秒前
18秒前
帅气凝云发布了新的文献求助10
20秒前
喵喵666完成签到,获得积分10
21秒前
catherine完成签到,获得积分10
21秒前
wanci应助澳大利亚采纳,获得10
23秒前
桐桐应助白樱恋曲采纳,获得10
23秒前
D调的华丽完成签到,获得积分10
24秒前
是猪毛啊完成签到,获得积分10
25秒前
cc发布了新的文献求助10
26秒前
汉堡包应助可乐采纳,获得10
26秒前
26秒前
科研通AI2S应助帅气凝云采纳,获得10
26秒前
啊啊啊啊啊完成签到,获得积分20
28秒前
28秒前
高分求助中
【重要!!请各位用户详细阅读此贴】科研通的精品贴汇总(请勿应助) 10000
Semantics for Latin: An Introduction 1055
Plutonium Handbook 1000
Three plays : drama 1000
Psychology Applied to Teaching 14th Edition 600
Robot-supported joining of reinforcement textiles with one-sided sewing heads 600
Cochrane Handbook for Systematic Reviews ofInterventions(current version) 500
热门求助领域 (近24小时)
化学 材料科学 医学 生物 工程类 有机化学 生物化学 物理 内科学 纳米技术 计算机科学 化学工程 复合材料 遗传学 基因 物理化学 催化作用 冶金 细胞生物学 免疫学
热门帖子
关注 科研通微信公众号,转发送积分 4101040
求助须知:如何正确求助?哪些是违规求助? 3638835
关于积分的说明 11531360
捐赠科研通 3347581
什么是DOI,文献DOI怎么找? 1839713
邀请新用户注册赠送积分活动 906964
科研通“疑难数据库(出版商)”最低求助积分说明 824156