Methods used for soil stabilization during construction of transportation facilities

U radu je dan kratak pregled konvencionalnih postupaka stabilizacije (vapno, cement) te postupaka u kojima se primjenjuju noviji proizvodi na bazi sintetičkih polimera (primjerice akrilat, polivinil acetat), encimi i biološka sredstva, ionski proizvodi, lignini, smole te ostali tipovi sredstava za stabilizaciju. Također su prikazani rezultati in situ i rezultati laboratorijskih ispitivanja tla stabiliziranog GeoCretom, jednim od novijih proizvoda dostupnih na hrvatskom tržištu.A brief overview is given of traditional stabilization procedures (lime, cement) and procedures involving the use of new synthetic-polymer based products (such as acrylate, polyvinyl acetate), enzymes and biological products, ionic products, lignins, resins, and other types of stabilization products. Results of in situ and laboratory testing of soil stabilized with GeoCreta, one of the recent products available on Croatian market, are also presented

Estimation of measurement uncertainty when determining compressive strength of mixtures

U radu je prikazan postupak procjene mjerne nesigurnosti rezultata određivanja tlačne čvrstoće prema normi HRN EN 13286-41. Istaknuta je potreba za provođenjem procjene dva tipa mjerne nesigurnosti (A i B) za ispitne metode kod kojih je to moguće provesti u praksi. Autori su ovim radom željeli pokazati da je podatak o mjernoj nesigurnosti još jedan od načina koji doprinosi kvaliteti mjernog rezultata i unapređenju sustava kontrole kvalitete u laboratoriju.The procedure for estimating measurement uncertainty during determination of compressive strength according to HRN EN 13286-41 is presented. It is emphasized that two types of measurement uncertainty should be determined (A and B) and for test methods in which this determination is possible in practical work. The objective of the paper is to show that the measurement uncertainty information is one of the data that contribute to higher quality of measurement results and to the improvement of quality control systems in laboratory conditions

Methods used for soil stabilization during construction of transportation facilities

U radu je dan kratak pregled konvencionalnih postupaka stabilizacije (vapno, cement) te postupaka u kojima se primjenjuju noviji proizvodi na bazi sintetičkih polimera (primjerice akrilat, polivinil acetat), encimi i biološka sredstva, ionski proizvodi, lignini, smole te ostali tipovi sredstava za stabilizaciju. Također su prikazani rezultati in situ i rezultati laboratorijskih ispitivanja tla stabiliziranog GeoCretom, jednim od novijih proizvoda dostupnih na hrvatskom tržištu.A brief overview is given of traditional stabilization procedures (lime, cement) and procedures involving the use of new synthetic-polymer based products (such as acrylate, polyvinyl acetate), enzymes and biological products, ionic products, lignins, resins, and other types of stabilization products. Results of in situ and laboratory testing of soil stabilized with GeoCreta, one of the recent products available on Croatian market, are also presented