The construction of toll roads in Indonesia until September 2021 has reached a length of 4420.6 km with 2127.54 km in operation. The toll road construction has provided a fairly high movement of people and goods. Data were collected from the Terbanggi Besar toll road in Lampung Sumatera, user community and the community in the Sragen sub-district, Central Java by filling out a questionnaire about their perceptions and Central Java by filling out a questionnaire about public perceptions and expectations regarding toll road construction. By utilizing the Importance Performance Analysis (IPA) method, a mapping of the expectations desired by residents for the construction of toll roads is obtained to increase their economic activities. The results of public perceptions obtained are that there are 13% of people aged 60-70 years; 35.71% of people wish to take part in entrepreneurship training while 53.7% of them wish to continue to carry out activities as before.

Nanotechnology has experienced rapid growth, it can be seen the emergence of products and high interest researchers associated with nanotechnology. The implication process natural resources management is no longer limited to generating value addition, but were able to perform value creation. One potential source is the natural silica sand. Silica sand reserves in Indonesia, among others are, South Kalimantan, West Java, East Java and Papua. Utilization of silica sand has been used as a filler only on the construction materials at a price of 20 - 50 IDR/kg, while microsilica: 12,000 – 15,000 IDR/kg and nanosilica: 100,000-150,000 IDR/kg. This study develops the potential of silica sand in Indonesia through testing, XRF, XRD, SEM and PSA. Then further process by nanosilica’s equipment in Indonesia, resulting microsilica and nanosilica Indonesia. The end result made ​​comparisons with microsilica and commercial nanosilica. The results showed that the Planetary Ball Mill (PBM), High Energy Milling (HEM) can be used to generate microsilica. Polishing Liquid Milling Technology (PLMT) can be used to make nanosilica of Indonesia's natural resources, which is equivalent to nanosilica have traded commercial.

Using plastic waste as a construction material was one of the techniques used to overcome the inconsistencies associated with environmental pollution created by indiscriminate dumping of plastic waste. It was refined into aggregates that were utilized as a fractional replacement for coarse aggregates in concrete mixtures. The sole objective of this research work is to analyze the use of plastic waste in concrete. Two types of aggregates extracted from plastic waste namely: Polypropylene (PP) and High-Density Polyethylene (HDPE) were used in carrying out this study. The percentages of PP used were 5%, 10%, 15%, while 15%, 20%, 25% were used for HDPE. Similarly, the slump value, compressive strength, and tensile strength were tested for 28 days and at a concrete age of 3.7. The results obtained proved that a percentage increase in plastic aggregate would invariably reduce the value of slump, compressive strength, and tensile strength. The optimum percentage of PP and HDPE used were 10% and 15% respectively. This research contributed to providing an alternative to overcoming plastic waste.

Rapid setting materials, especially for concrete repairs made on major arteries such as toll roads which must withstand heavy traffic. Several manufacturers of construction chemicals have been producing various types of rapid setting materials designed for use in repairing such toll roads. However, the existing toll road repair materials have not demonstrated satisfactory performance when applied in the field. This study modified micro concrete materials by adding Polycarboxylate Ether (PCE) and Polypropylene Fiber (PPF) at the time of mixing existing rapid setting materials. It then tested flow tests and setting time at 16, 20, 30, 40, and 60 minutes, as well as compressive strength; and flexural strength tests at the ageing times of 3 hours, 1 day, and 7 days. The concrete micro material was applied directly in the field. The results show that micro concrete material is definitely suitable for toll road repair. The addition of PCE and PPF can increase the flexural strength and modulus of elasticity, meaning that the material is not easily cracked under the repeated strains of heavy traffic loads. Therefore, the use of this micro concrete material has been proven to be viable for future repairs of heavily trafficked toll roads.

The high growth of entrepreneurs is one way to deal with globalization, so the government is very serious in developing entrepreneurship programs, especially among students. But being an entrepreneur is not easy, due to several factors such as talent, motivation, obstacles and expectations. The purpose of this study was to determine the talents, motivations, barriers and expectations of students to become an entrepreneur. The respondents of this study were civil engineering students from the 2014-2021 class, totaling 275 students consisting of 180 men and 95 women. Then respondents were asked to answer a questionnaire consisting of 5 main questions related to entrepreneurial knowledge and future expectations. The results showed that the entrepreneurial talent among male students was higher with a percentage of 65.3% while female students were 56.8%. Making a lot of money is the main motivation to become an entrepreneur, while the lack of capital as much as 55.8% is the main obstacle. The choice of business field to become an entrepreneur is not in accordance with the education taken by 53.6%. Short-term expectations are not appropriate by 54.5%, while long-term expectations are in accordance with the percentage of 55.7%.Pertumbuhnya entrepreneur yang tinggi merupakan salah satu cara untuk menghadapi Globalisasi, sehingga pemerintah sangat serius dalam mengembangkan program entrepreneurship khususnya dikalangan mahasiswa. Namun menjadi seorang entrepreneur  tidaklah mudah, karena beberapa faktor seperti bakat , motivasi, hambatan dan harapan. Tujuan dari penelitian ini adalah untuk mengetahui  bakat, motivasi, hambatan dan harapan mahasiswa untuk menjadi seorang entrepreneur. Responden penelitian ini adalah mahasiswa teknik sipil angkatan 2014-2021 yang berjumlah 275 mahasiswa terdiri dari 180 pria dan 95 wanita. Kemudian responden diminta untuk menjawab kuesioner yang terdiri dari 5 pertanyaan utama terkait pengetahuan entrepreneur dan harapan masa depan. Hasil penelitian menunjukkan bahwa bakat entrepreneur  di kalangan mahasiswa pria lebih tinggi dengan persentase  65,3% sedangkan mahasiswi wanita sebesar 56,8%. Menghasilkan banyak uang merupakan  motivasi utama menjadi entrepreneur, sedangkan tidak ada modal sesesar 55,8% merupakan hambatan utama. Pilihan bidang usaha menjadi entrepreneur tidak sesuai dengan pendidikan yang ditempuh sebesar 53,6%. Harapan jangka pendek tidak sesuai sebesar 54,5% , sedangkan jangka panjang sesuai dengan persentase sebesar 55,7%.